參數(shù)資料
型號(hào): 935225410112
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PDIP40
封裝: 0.600 INCH, PLASTIC, DIP-40
文件頁(yè)數(shù): 38/67頁(yè)
文件大小: 400K
代理商: 935225410112
1998 Apr 07
43
Philips Semiconductors
Product specication
8-bit Flash microcontrollers
P89C738; P89C739
17 SPECIAL FUNCTION REGISTERS OVERVIEW
The P89C738; P89C739 have 30 SFRs available to the user.
Notes
1. X = undefined.
2. Bit addressable register.
ADDRESS
(HEX)
NAME
RESET VALUE
(B)(1)
FUNCTION
FF
T3
0000 0000
Watchdog Timer
F0
B(2)
0000 0000
B Register
EB
EBTCON
XXXX XX00
Watchdog Timer Control Register
E0
ACC(2)
0000 0000
Accumulator
D0
PSW(2)
0000 0000
Program Status Word
CD
TH2
0000 0000
Timer 2 High byte Register
CC
TL2
0000 0000
Timer 2 Low byte Register
CB
RCAP2H
0000 0000
Timer 2 Reload/Capture Register High byte
CA
RCAP2L
0000 0000
Timer 2 Reload/Capture Register Low byte
C8
T2CON(2)
0000 0000
Timer/Counter 2 Control Register
C7
P5
1111 1111
I/O Port Register 5
C0
P4(2)
1111 1111
I/O Port Register 4
B8
IP0(2)
X000 0000
Interrupt Priority Register 0
B0
P3(2)
1111 1111
I/O Port Register 3
A8
IEN0(2)
0000 0000
Interrupt Enable Register 0
A0
P2
1111 1111
I/O Port Register 2
99
S0BUF
0000 0000
Serial Data Buffer Register 0
98
S0CON(2)
0000 0000
Serial Port Control Register 0
90
P1(2)
1111 1111
I/O Port Register 2
8D
TH1
0000 0000
Timer 1 High byte Register
8C
TH0
0000 0000
Timer 0 High byte Register
8B
TL1
0000 0000
Timer 1 Low byte Register
8A
TL0
0000 0000
Timer 0 Low byte Register
89
TMOD
0000 0000
Timer/Counter Mode Control Register
88
TCON(2)
0000 0000
Timer/Counter Control Register
87
PCON
0000 0000
Power Control Register
83
DPH
0000 0000
Data Pointer High byte Register
82
DPL
0000 0000
Data Pointer Low byte Register
81
SP
0000 0111
Stack Pointer
80
P0(2)
1111 1111
I/O Port Register 0
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