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Philips Semiconductors
User’s Manual - Preliminary -
P89LPC901/902/903
GENERAL DESCRIPTION
2003 Dec 8 17
IP0H# Interrupt Priority 0 High B7H -
PWDRT
H
PBOH - PT1H - PT0H - 00H
1
x0000000
FF FE FD FC FB FA F9 F8
IP1*# Interrupt Priority 1 F8H - - - - - PC PKBI - 00H
1
00x00000
IP1H# Interrupt Priority 1 High F7H - - - - - PCH PKBIH - 00H
1
00x00000
KBCON# Keypad Control Register 94H - - - - - -
PATN_S
EL
KBIF 00H
1
xxxxxx00
KBMASK# Keypad Interrupt Mask Register 86H 00H 00000000
KBPATN# Keypad Pattern Register 93H FFH 11111111
87 86 85 84 83 82 81 80
P0* Port 0 80H - -
CMPREF/
KB5
CIN1A/
KB4
---- Note 1
97 96 95 94 93 92 91 90
P1* Port 1 90H - - RST
--T0--
B7 B6 B5 B4 B3 B2 B1 B0
P3* Port 3 B0H - - - - - - XTAL1 XTAL2 Note 1
P0M1# Port 0 Output Mode 1 84H - - (P0M1.5) (P0M1.4) - - - - FFH 11111111
P0M2# Port 0 Output Mode 2 85H - - (P0M2.5) (P0M2.4) - - - - 00H 00000000
P1M1# Port 1 Output Mode 1 91H - - (P1M1.5) - - (P1M1.2) - - FFH
1
11111111
P1M2# Port 1 Output Mode 2 92H - - (P1M2.5) - - (P1M2.2) - - 00H
1
00000000
P3M1# Port 3 Output Mode 1 B1H - - - - - - (P3M1.1) (P3M1.0) 03H
1
xxxxxx11
P3M2# Port 3 Output Mode 2 B2H - - - - - - (P3M2.1) (P3M2.0) 00H
1
xxxxxx00
PCON# Power Control Register 87H - - BOPD BOI GF1 GF0 PMOD1 PMOD0 00H 00000000
PCONA# Power Control Register A B5H RTCPD - VCPD - - - - -
00H
1
00000000
D7 D6 D5 D4 D3 D2 D1 D0
PSW* Program Status Word D0H CY AC F0 RS1 RS0 OV F1 P 00H 00000000
PT0AD# Port 0 Digital Input Disable F6H - - PT0AD.5 PT0AD.4 - - - - 00H xx00000x
RSTSRC# Reset Source Register DFH - - BOF POF - R_WD R_SF R_EX Note 2
RTCCON# Real-Time Clock Control D1H RTCF RTCS1 RTCS0 - - - ERTC RTCEN 60H
1,5
011xxx00
RTCH# Real-Time Clock Register High D2H 00H
5
00000000
RTCL# Real-Time Clock Register Low D3H 00H
5
00000000
SP Stack Pointer 81H 07H 00000111
TAMOD# Timer 0 Auxiliary Mode 8FH - - - - - - - T0M2 00H xxx0xxx0
Name Description
SFR
Address
Bit Functions and Addresses Reset Value
MSB
LSB
Hex Binary