Table 1. sfr register map (continued) – Rainbow Electronics DS89C450 User Manual
Page 17

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.