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Table 1. sfr register map (continued) – Rainbow Electronics DS89C450 User Manual

Page 17

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DS89C430/DS89C440/DS89C450 Ultra-High-Speed Flash Microcontrollers

17 of 48

Table 1. SFR Register Map (continued)

REGISTER

ADDRESS

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

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.