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                ifndef  stddef51inc     ; avoid multiple inclusion
stddef51inc     equ     1

                save
                listing off   ; no listing over this file

;****************************************************************************
;*                                                                          *
;*   AS 1.42 - File STDDEF51.INC                                            *
;*                                                                          *
;*   Holds SFR and Bit Definitions for MCS-51 Processors                    *
;*                                                                          *
;****************************************************************************

                if      (MOMCPUNAME<>"87C750")&&(MOMCPUNAME<>"8051")&&(MOMCPUNAME<>"8052")&&(MOMCPUNAME<>"80C320")&&(MOMCPUNAME<>"80515")&&(MOMCPUNAME<>"80517")
                 fatal  "wrong target selected: only 87C750, 8051, 8052, 80C320, 80515, or 80517 supported"
                endif


                if      MOMPASS=1
                 message "MCS-51 SFR Definitions (C) 1993 Alfred Arnold/Gabriel Jager"
                 message "including \{MOMCPU} SFRs"
                endif

;----------------------------------------------------------------------------
; first of all, the things that exist (almost) everywhere:

P0              SFRB    80h             ; I/O Ports
P1              SFRB    90h
P2              SFRB    0a0h
P3              SFRB    0b0h
RD              BIT     P3.7            ; Port 3: Write Line
WR              BIT     P3.6            ;         Read Line
T1              BIT     P3.5            ;         Test Line 1
T0              BIT     P3.4            ;         Test Line 0
INT1            BIT     P3.3            ;         External Interrupt 1
INT0            BIT     P3.2            ;         External Interrupt 0
TXD             BIT     P3.1            ;         Serial Output
RXD             BIT     P3.0            ;         Serial Input
                if      MOMCPU=80C320H
TXD1             BIT    P1.3            ; zweiter Serial Output
RXD1             BIT    P1.2            ; zweiter Serial Input
                endif

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

SP              SFR     81h             ; Stack Pointer
DPL             SFR     82h             ; Data Pointer Bits 0..7
DPH             SFR     83h             ;      "       Bits 8..15
                if      MOMCPU=80C320H
DPL0             SFR    DPL
DPH0             SFR    DPH
DPL1             SFR    84h             ; Second Data Pointer 80C320
DPH1             SFR    DPL1+1
DPS              SFR    86h             ; Bit 0 = Select DPTR0<-->DPTR1
                endif
PSW             SFRB    0d0h            ; Processor Status Word
CY              BIT     PSW.7
AC              BIT     PSW.6
F0              BIT     PSW.5
RS1             BIT     PSW.4
RS0             BIT     PSW.3
OV              BIT     PSW.2
P               BIT     PSW.0
ACC             SFRB    0e0h            ; Accumulator
B               SFRB    0f0h            ; Auxiliary Accumulator for MUL/DIV

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

SCON            SFRB    98h             ; Serial Interface: Control Register
SM0             BIT     SCON.7          ; Operating Modes
SM1             BIT     SCON.6
SM2             BIT     SCON.5
REN             BIT     SCON.4          ; Receiver Enable
TB8             BIT     SCON.3          ; 9th Bit to be sent
RB8             BIT     SCON.2          ; 9th received bit
TI              BIT     SCON.1          ; Transmit Interrupt Flag
RI              BIT     SCON.0          ; Receive Interrupt Flag
SBUF            SFR     99h             ; Data Register

                if      MOMCPU=80C320H  ; Registers for Second Serial Port
SCON0            SFR    SCON
SM0_0            BIT    SCON0.7
SM1_0            BIT    SCON0.6
SM2_0            BIT    SCON0.5
REN_0            BIT    SCON0.4
TB8_0            BIT    SCON0.3
RB8_0            BIT    SCON0.2
TI_0             BIT    SCON0.1
RI_0             BIT    SCON0.0
SBUF0            SFR    SBUF
SCON1            SFR    0c0h            ; Control Register
SM0_1            BIT    SCON1.7
SM1_1            BIT    SCON1.6
SM2_1            BIT    SCON1.5
REN_1            BIT    SCON1.4
TB8_1            BIT    SCON1.3
RB8_1            BIT    SCON1.2
TI_1             BIT    SCON1.1
RI_1             BIT    SCON1.0
SBUF1            SFR    0c1h            ; Data Register
                endif

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

PCON            SFR     87h             ;  Power Management

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

TCON            SFRB    88h             ; Timer 0/1 Control Register
TF1             BIT     TCON.7          ; Timer 1 Overflow
TR1             BIT     TCON.6          ; Timer 1 Start
TF0             BIT     TCON.5          ; Timer 0 Overflow
TR0             BIT     TCON.4          ; Timer 0 Start
IE1             BIT     TCON.3          ; External Interrupt 1 Flag
IT1             BIT     TCON.2          ; External Interrupt 1 Edge Select
IE0             BIT     TCON.1          ; External Interrupt 0 Flag
IT0             BIT     TCON.0          ; External Interrupt 0 Edge Select
TMOD            SFR     89h             ; Timer 0/1 Operating Modes Register
TL0             SFR     8ah             ; Timer 0 Data
TL1             SFR     8bh
TH0             SFR     8ch             ; Timer 1 Data
TH1             SFR     8dh

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; No Timer 2 on 8051

                if      MOMCPU<>8051h
T2CON            SFRB   0c8h            ; Timer 2 Control Register
TL2              SFR    0cch            ; Timer 2 Data
TH2              SFR    0cdh
                 if     (MOMCPU=8052h)||(MOMCPU=80C320h)
RCAP2L            SFR   0cah            ; Capture Register
RCAP2H            SFR   0cbh
TF2               BIT   T2CON.7         ; Timer 2 Overflow
EXF2              BIT   T2CON.6         ; Reload Occured
RCLK              BIT   T2CON.5         ; Timer 2 Delivers RxD-Takt
TCLK              BIT   T2CON.4         ; Timer 2 Delivers TxD-Takt
EXEN2             BIT   T2CON.3         ; Timer 2 External Enable
TR2               BIT   T2CON.2         ; Timer 2 Start
CT2               BIT   T2CON.1         ; Timer 2 as Counter
CPRL2             BIT   T2CON.0         ; Enable Capture
                 elseif
CRCL              SFR   0cah            ; other Names on 80515 !!
CRCH              SFR   0cbh
T2PS              BIT   T2CON.7
I3FR              BIT   T2CON.6
I2FR              BIT   T2CON.5
T2R1              BIT   T2CON.4
T2R0              BIT   T2CON.3
T2CM              BIT   T2CON.2
T2I1              BIT   T2CON.1
T2I0              BIT   T2CON.0
                 endif
                endif

                if      MOMCPU=80C320H  ; 80C320 Clock Selection
CKCON            SFR    8eh             ; Bit 3,4,5 <--> Timer 0,1,2
                endif                   ; Bit 6,7 <--> Watchdog Timeout

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; 80C320 Watchdog

                if      MOMCPU=80C320h
WDCON            SFRB   0d8h
RWT              BIT    WDCON.0         ; Watchdog Reset
EWT              BIT    WDCON.1         ; Watchdog Enable
WTRF             BIT    WDCON.2         ; Watchdog Reset Flag
WDIF             BIT    WDCON.3         ; Interrupt '512 Clocks to Reset' Flag
PFI              BIT    WDCON.4         ; Power Fail Interrupt Flag
EPFI             BIT    WDCON.5         ; Power Fail Interrupt Enable
POR              BIT    WDCON.6
WD_SMOD          BIT    WDCON.7
TA               SFR    0c7h            ; write AA 55 to get access to special
                endif                   ; registers

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;
                          
                if      MOMCPU=80C320H
SADDR0           SFR    0a9h            ; Serial Port 0 Slave Address
SADDR1           SFR    0aah            ; Serial Port 1 Slave Address
SADEN0           SFR    0b9h            ; Enable Bits in SADDR0
SADEN1           SFR    0bah            ; Enable Bits in SADDR1
                endif

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; Additional 80515/80517 Register

                if      (MOMCPU=80515h)||(MOMCPU=80517h)
P4               SFRB   0e8h
P5               SFRB   0f8h
P6               SFR    0DBh

CCEN             SFR    0c1h
CCH3             SFR    0c7h
CCL3             SFR    0c6h
CCH2             SFR    0c5h
CCL2             SFR    0c4h
CCH1             SFR    0c3h
CCL1             SFR    0c2h

ADCON            SFRB   0d8h            ; Other Names on 80515/80517
BD               BIT    ADCON.7
CLK              BIT    ADCON.6
BSY              BIT    ADCON.4
ADM              BIT    ADCON.3
MX2              BIT    ADCON.2
MX1              BIT    ADCON.1
MX0              BIT    ADCON.0
ADDAT            SFR    0d9h
DAPR             SFR    0dah
                endif

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; Additional 80517-Register

               if      MOMCPU=80517h

DPSEL            SFR    92h             ; Data Pointer Select
ADCON1           SFR    0dch            ; A/D Converter Control 1
CTCON            SFR    0e1h            ; Compare Timer Control
IEN2             SFR    9ah
ARCON            SFR    0efh
MD0              SFR    0e9h            ;]      Multiplication
MD1              SFR    0eah            ;]      and
MD2              SFR    0ebh            ;]      Division Registers
MD3              SFR    0ech            ;]
MD4              SFR    0edh            ;]      1 - 5
MD5              SFR    0eeh            ;]
CC4EN            SFR    0c9h
CCH4             SFR    0cfh
CCL4             SFR    0ceh
CMEN             SFR    0f6h
CMH0             SFR    0d3h
CMH1             SFR    0d5h
CMH2             SFR    0d7h
CMH3             SFR    0e3h
CMH4             SFR    0e5h
CMH5             SFR    0e7h
CMH6             SFR    0f3h
CMH7             SFR    0f5h
CML0             SFR    0d2h
CML1             SFR    0d4h
CML2             SFR    0d6h
CML3             SFR    0e2h
CML4             SFR    0e4h
CML5             SFR    0e6h
CML6             SFR    0f8h
CML7             SFR    0f4h
CMSEL            SFR    0f7h
CTRELH           SFR    0dfh
CTRELL           SFR    0deh
P6               SFR    0fah            ; ??? Bit Addressable
P7               SFR    0dbh            ; ??? Bit Addressable
P8               SFR    0ddH            ; ??? Bit Addressable
ADCON0           SFR    0d8h            ; A/D Converter Control 0
S0BUF            SFR    99h             ;]      Control
S0CON            SFR    98h             ;]      of
S1BUF            SFR    9ch             ;]      Serial
S1CON            SFR    9bh             ;]      Interfaces
S1REL            SFR    9dh             ;]      0 and 0
WDTREL           SFR    86h             ;]

                endif

;- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; Interrupt Control Register: not compatible between 8051/52 and 80515/80517 !!!

                if      (MOMCPU=80515h)||(MOMCPU=80517h)
IEN0             SFRB   0a8h
EAL              BIT    IEN0.7
WDT              BIT    IEN0.6
ET2              BIT    IEN0.5
ES               BIT    IEN0.4
ET1              BIT    IEN0.3
EX1              BIT    IEN0.2
ET0              BIT    IEN0.1
EX0              BIT    IEN0.0
IEN1             SFRB   0b8h
EXEN2            BIT    IEN1.7
SWDT             BIT    IEN1.6
EX6              BIT    IEN1.5
EX5              BIT    IEN1.4
EX4              BIT    IEN1.3
EX3              BIT    IEN1.2
EX2              BIT    IEN1.1
EADC             BIT    IEN1.0
IP0              SFR    0a9h
IP1              SFR    0b9h
IRCON            SFRB   0c0h
EXF2             BIT    IRCON.7
TF2              BIT    IRCON.6
IEX6             BIT    IRCON.5
IEX5             BIT    IRCON.4
IEX4             BIT    IRCON.3
IEX3             BIT    IRCON.2
IEX2             BIT    IRCON.1
IADC             BIT    IRCON.0
                elseif
IE               SFRB   0a8h            ; Interrupt Enable
IEC              SFRB   IE
EA               BIT    IE.7            ; Global Interrupt Enable
ES               BIT    IE.4            ; Serial Interface Interrupts Enable
ET1              BIT    IE.3            ; Timer 1 Interrupt Enable
EX1              BIT    IE.2            ; External Interrupt 1 Enable
ET0              BIT    IE.1            ; Timer 0 Interrupt Enable
EX0              BIT    IE.0            ; External Interrupt 0 Enable
IP               SFRB   0b8h            ; Interrupt Priorities
IPC              SFRB   IP
PS               BIT    IP.4            ; Serial Interrupt Priority
PT1              BIT    IP.3            ; Timer 1 Interrupt Priority
PX1              BIT    IP.2            ; External Interrupt 1 Priority
PT0              BIT    IP.1            ; Timer 0 Interrupt Priority
PX0              BIT    IP.0            ; External Interrupt 0 Priority
                 if     MOMCPU=8052h
ET2               BIT   IE.5            ; Timer 2 Interrupt Enable
PT2               BIT   IP.5            ; Timer 2 Interrupt Priority
                 endif
                endif

                if      MOMCPU=80C320H  ; 80C320 Extended Interrupts
EIE              SFRB   0e8h
EWDI             BIT    EIE.4           ; Watchdog Interrupt Enable
EX5              BIT    EIE.3           ; External Interrupts 2..5 Enable
EX4              BIT    EIE.2
EX3              BIT    EIE.1
EX2              BIT    EIE.0
EIP              SFRB   0f8h
PWDI             BIT    EIP.4           ; Watchdog-Interrupt Priority
PX5              BIT    EIP.3           ; External Interrupts 2..5 Priority
PX4              BIT    EIP.2
PX3              BIT    EIP.1
PX2              BIT    EIP.0
EXIF             SFR    91h             ; Extended Interrupt Flag Register
                endif

;---------------------------------------------------------------------------
; Since the 8051 has no instructions to pus the registers, this has to be done
; via direct addressing, which requires knowledge of the currently active bank.
; The macro USING is provided for doing this.  It holds the addresses of the
; currently active registers in symbols AR0..AR7.  USING expects the bank
; number as argument.

Bank0           equ     0                ; For Completeness...
Bank1           equ     1
Bank2           equ     2
Bank3           equ     3

using           macro   bank
                if      (bank<0)||(bank>3)          ; only bank 0..3 allowed
                 error  "Falsche Banknummer: \{BANK}"
                endif

                ifdef   RegUsage        ; Book-Keeping about Used Banks
RegUsage         set    RegUsage|(2^bank)
                elseif
RegUsage         set    2^bank
                endif

ar0             set     bank*8          ; Set Symbols
ar1             set     ar0+1
ar2             set     ar0+2
ar3             set     ar0+3
ar4             set     ar0+4
ar5             set     ar0+5
ar6             set     ar0+6
ar7             set     ar0+7
                endm

                restore                 ; re-allow listing

                endif                   ; stddef51inc