83c751.mcu

用芯片AT89C51做的简单的万年历

;   83C751 processor definition file
;   ================================
;
;   Attention!
;   ----------
;   Philips has defined four BIT symbols in the I2STA
;   register that are leading to name conflicts:
;
;   1. Originally the same names have been assigned to the bits
;      XSTP, XSTR, and IDLE in the I2STA read-only register as
;      to the corresponding bits in the I2CON write register.
;      To make things unique, the bit symbols in the I2STA
;      register have been renamed to XSTP_, XSTR_, and IDLE_.
;
;   2. The XDATA bit symbol in the I2STA register is conflicting
;      with the XDATA keyword from the Intel MCS-51 assembly
;      language, and has therefore been abbreviated to XDAT.

P0	DATA	080H
SP	DATA	081H
DPL	DATA	082H
DPH	DATA	083H
PCON	DATA	087H
TCON	DATA	088H
TL	DATA	08AH
RTL	DATA	08BH
TH	DATA	08CH
RTH	DATA	08DH
P1	DATA	090H
I2CON   DATA    098H
I2DAT   DATA    099H
IE	DATA	0A8H
P3	DATA	0B0H
PSW	DATA	0D0H
I2CFG   DATA    0D8H
ACC	DATA	0E0H
B	DATA	0F0H
I2STA   DATA    0F8H

SCL     BIT     080H
SDA     BIT     081H
IT1	BIT	088H
IE1	BIT	089H
IT0	BIT	08AH
IE0	BIT	08BH
TR	BIT	08CH
TF	BIT	08DH
CT	BIT	08EH
GATE	BIT	08FH
INT0	BIT	095H
INT1	BIT	096H
T0	BIT	097H
XSTP    BIT     098H    ;write
MASTER  BIT     099H    ;read
XSTR    BIT     099H    ;write
STP     BIT     09AH    ;read
CSTP    BIT     09AH    ;write
STR     BIT     09BH    ;read
CSTR    BIT     09BH    ;write
ARL     BIT     09CH    ;read
CARL    BIT     09CH    ;write
DRDY    BIT     09DH    ;read
CDR     BIT     09DH    ;write
ATN     BIT     09EH    ;read
IDLE    BIT     09EH    ;write
RDAT    BIT     09FH    ;read
CXA     BIT     09FH    ;write
EX0	BIT	0A8H
ET0	BIT	0A9H
EX1	BIT	0AAH
ETI     BIT     0ABH
EI2     BIT     0ACH
EA	BIT	0AFH
P	BIT	0D0H
OV	BIT	0D2H
RS0	BIT	0D3H
RS1	BIT	0D4H
F0	BIT	0D5H
AC	BIT	0D6H
CY	BIT	0D7H
CT0     BIT     0D8H
CT1     BIT     0D9H
TIRUN   BIT     0DCH
CLRTI   BIT     0DDH
MASTRQ  BIT     0DEH
SLAVEN  BIT     0DFH
XSTP_   BIT     0F8H
XSTR_   BIT     0F9H
MAKSTP  BIT     0FAH
MAKSTR  BIT     0FBH
XACTV   BIT     0FCH
XDAT    BIT     0FDH
IDLE_   BIT     0FEH

RESET	CODE	000H
EXTI0	CODE	003H
TIMER0	CODE	00BH
EXTI1	CODE	013H
TIMER1  CODE    01BH
I2CBUS  CODE    023H