P89C738ABB View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
'P89C738ABB' PDF : 64 Pages View PDF
Philips Semiconductors
8-bit Flash microcontrollers
Product specification
P89C738; P89C739
17 SPECIAL FUNCTION REGISTERS OVERVIEW
The P89C738; P89C739 have 30 SFRs available to the user.
ADDRESS
(HEX)
NAME
FF
T3
F0
B(2)
EB
EBTCON
E0
ACC(2)
D0
PSW(2)
CD TH2
CC TL2
CB
RCAP2H
CA
RCAP2L
C8
T2CON(2)
C7
P5
C0
P4(2)
B8
IP0(2)
B0
P3(2)
A8
IEN0(2)
A0
P2
99
S0BUF
98
S0CON(2)
90
P1(2)
8D
TH1
8C
TH0
8B
TL1
8A
TL0
89
TMOD
88
TCON(2)
87
PCON
83
DPH
82
DPL
81
SP
80
P0(2)
RESET VALUE
(B)(1)
FUNCTION
0000 0000 Watchdog Timer
0000 0000 B Register
XXXX XX00 Watchdog Timer Control Register
0000 0000 Accumulator
0000 0000 Program Status Word
0000 0000 Timer 2 High byte Register
0000 0000 Timer 2 Low byte Register
0000 0000 Timer 2 Reload/Capture Register High byte
0000 0000 Timer 2 Reload/Capture Register Low byte
0000 0000 Timer/Counter 2 Control Register
1111 1111 I/O Port Register 5
1111 1111 I/O Port Register 4
X000 0000 Interrupt Priority Register 0
1111 1111 I/O Port Register 3
0000 0000 Interrupt Enable Register 0
1111 1111 I/O Port Register 2
0000 0000 Serial Data Buffer Register 0
0000 0000 Serial Port Control Register 0
1111 1111 I/O Port Register 2
0000 0000 Timer 1 High byte Register
0000 0000 Timer 0 High byte Register
0000 0000 Timer 1 Low byte Register
0000 0000 Timer 0 Low byte Register
0000 0000 Timer/Counter Mode Control Register
0000 0000 Timer/Counter Control Register
0000 0000 Power Control Register
0000 0000 Data Pointer High byte Register
0000 0000 Data Pointer Low byte Register
0000 0111 Stack Pointer
1111 1111 I/O Port Register 0
Notes
1. X = undefined.
2. Bit addressable register.
1998 Apr 07
43
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