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TS80C51U2 Datasheet(PDF) 4 Page - TEMIC Semiconductors |
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TS80C51U2 Datasheet(HTML) 4 Page - TEMIC Semiconductors |
4 / 67 page 4 Rev. C - Aug. 24, 1999 TS80C51U2 TS83C51U2 TS87C51U2 5. SFR Mapping The Special Function Registers (SFRs) of the TS80C51U2 fall into the following categories: • C51 core registers: ACC, B, DPH, DPL, PSW, SP, AUXR1 • 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 for UART_0: SADDR_0, SADEN_0, SBUF_0, SCON_0 • Serial I/O port registers for UART_1: SADDR_1, SADEN_1, SBUF_1, SCON_1 • Baud Rate Generator registers: BRL, BDRCON, BDRCON_1 • Power and clock control registers: PCON • HDW Watchdog Timer Reset: WDTRST, WDTPRG • Interrupt system registers: IE, IP, IPH • Others: AUXR, CKCON Table 2. All SFRs with their address and their reset value Bit address- able Non Bit addressable 0/8 1/9 2/A 3/B 4/C 5/D 6/E 7/F F8h FFh F0h B 0000 0000 F7h E8h EFh E0h ACC 0000 0000 E7h D8h DFh D0h PSW 0000 0000 D7h C8h T2CON 0000 0000 T2MOD XXXX XX00 RCAP2L 0000 0000 RCAP2H 0000 0000 TL2 0000 0000 TH2 0000 0000 CFh C0h SCON_1 0000 0000 SBUF_1 XXXX XXXX C7h B8h IP X000 0000 SADEN_0 0000 0000 SADEN_1 0000 0000 BFh B0h P3 1111 1111 IPH X000 0000 B7h A8h IE 0X00 0000 SADDR_0 0000 0000 SADDR_1 0000 0000 AFh A0h P2 1111 1111 AUXR1 XXXX XXX0 WDTRST XXXX XXXX WDTPRG XXXX X000 A7h 98h SCON_0 0000 0000 SBUF_0 XXXX XXXX BRL 0000 0000 BDRCON 0XXX 0000 BDRCON_1 0X00 00XX 9Fh 90h P1 1111 1111 97h 88h TCON 0000 0000 TMOD 0000 0000 TL0 0000 0000 TL1 0000 0000 TH0 0000 0000 TH1 0000 0000 AUXR 00XX XXX0 CKCON XXXX XXX0 8Fh 80h P0 1111 1111 SP 0000 0111 DPL 0000 0000 DPH 0000 0000 PCON 00X1 0000 87h 0/8 1/9 2/A 3/B 4/C 5/D 6/E 7/F reserved |
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