T89C51RD2-3CSCL ATMEL [ATMEL Corporation], T89C51RD2-3CSCL Datasheet - Page 8

• Manufacturer Part Number: T89C51RD2-3CSCL
• Description: 0 to 40 MHz Flash Programmable 8-bit Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

SFR Mapping
8
T89C51RD2
The Special Function Registers (SFRs) of the T89C51RD2 fall into the following
categories:
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C51 core registers: ACC, B, DPH, DPL, PSW, SP, AUXR1
I/O port registers: P0, P1, P2, P3, P4, P5
Timer registers: T2CON, T2MOD, TCON, TH0, TH1, TH2, TMOD, TL0, TL1, TL2,
RCAP2L, RCAP2H
Serial I/O port registers: SADDR, SADEN, SBUF, SCON
Power and clock control registers: PCON
Hardware Watchdog Timer register: WDTRST, WDTPRG
Interrupt system registers: IE, IP, IPH
Flash and EEPROM registers: FCON, EECON, EETIM
Others: AUXR, AUXR1, CKCON
4243G–8051–05/03