Datasheet

DS89C430/DS89C450 Ultra-High-Speed Flash Microcontrollers

17 of 46

Table 1. SFR Register Map (continued)

TH1 8Dh

CKCON 8Eh WD1 WD0 T2M T1M T0M MD2 MD1 MD0

P1 90h P1.7/INT5 P1.6/INT4 P1.5/INT3 P1.4/INT2 P1.3/TXD1 P1.2/RXD1 P1.1/T2EX P1.0/T2

EXIF 91h IE5 IE4 IE3 IE2 CKRY RGMD RGSL BGS

CKMOD 96h T2MH T1MH T0MH — — —

SCON0 98h SM0/FE_0 SM1_0 SM2_0 REN_0 TB8_0 RB8_0 TI_0 RI_0

SBUF0 99h

ACON 9Dh PAGEE PAGES1 PAGES0 —

— — — —

P2 A0h P2.7 P2.6 P2.5 P2.4 P2.3 P2.2 P2.1 P2.0

IE A8h EA ES1 ET2 ES0 ET1 EX1 ET0 EX0

SADDR0 A9h

SADDR1 AAh

P3 B0h P3.7/RD P3.6/WR P3.5/T1 P3.4/T0 P3.3/INT1 P3.2/INT0 P3.1/TXD0 P3.0/RXD0

IP1 B1h — MPS1 MPT2 MPS0 MPT1 MPX1 MPT0 MPX0

IP0 B8h — LPS1 LPT2 LPS0 LPT1 LPX1 LPT0 LPX0

SADEN0 B9h

SADEN1 BAh

SCON1 C0h SM0/FE_1 SM1_1 SM2_1 REN_1 TB8_1 RB8_1 TI_1 RI_1

SBUF1 C1h

ROMSIZE C2h PRAME RMS2 RMS1 RMS0

PMR C4h CD1 CD0 SWB CTM 4X/2X ALEON DME1 DME0

STATUS C5h PIS2 PIS1 PIS0 — SPTA1 SPRA1 SPTA0 SPRA0

TA C7h

T2CON C8h TF2 EXF2 RCLK TCLK EXEN2 TR2 C/T2 CP/RL2

T2MOD C9h T2OE DCEN

RCAP2L CAh

RCAP2H CBh

TL2 CCh

TH2 CDh

PSW D0h CY AC F0 RS1 RS0 OV F1 P

FCNTL D5h FBUSY FERR FC3 FC2 FC1 FC0

FDATA D6h

WDCON D8h SMOD_1 POR EPFI PFI WDIF WTRF EWT RWT

ACC E0h

EIE E8h — — — EWDI EX5 EX4 EX3 EX2

B F0h

EIP1 F1h — — — MPWDI MPX5 MPX4 MPX3 MPX2

EIP0 F8h — — — LPWDI LPX5 LPX4 LPX3 LPX2

Note: Shaded bits are timed-access protected.