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AT89C51RB2-3CSIM Datasheet(PDF) 3 Page - ATMEL Corporation |
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AT89C51RB2-3CSIM Datasheet(HTML) 3 Page - ATMEL Corporation |
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3 / 125 page  3 AT89C51RB2/RC2 4180B–8051–04/03 SFR Mapping The Special Function Registers (SFRs) of the AT89C51RB2/RC2 fall into the following categories: • C51 core registers: ACC, B, DPH, DPL, PSW, SP • I/O port registers: P0, P1, P2, P3 • Timer registers: T2CON, T2MOD, TCON, TH0, TH1, TH2, TMOD, TL0, TL1, TL2, RCAP2L, RCAP2H • Serial I/O port registers: SADDR, SADEN, SBUF, SCON • PCA (Programmable Counter Array) registers: CCON, CCAPMx, CL, CH, CCAPxH, CCAPxL (x: 0 to 4) • Power and clock control registers: PCON • Hardware Watchdog Timer registers: WDTRST, WDTPRG • Interrupt system registers: IEN0, IPL0, IPH0, IEN1, IPL1, IPH1 • Keyboard Interface registers: KBE, KBF, KBLS • SPI registers: SPCON, SPSTR, SPDAT • BRG (Baud Rate Generator) registers: BRL, BDRCON • Flash register: FCON • Clock Prescaler register: CKRL • Others: AUXR, AUXR1, CKCON0, CKCON1 |
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