參數(shù)資料
型號(hào)： W78L058A24PL
廠商： WINBOND ELECTRONICS CORP
元件分類(lèi)： 微控制器/微處理器
英文描述： 8-BIT MICROCONTROLLER
中文描述： 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQCC44
封裝： ROHS COMPLIANT, PLASTIC, LCC-44
文件頁(yè)數(shù)： 7/34頁(yè)
文件大?。?/td> 238K
代理商： W78L058A24PL
W78LE58/W78L058A
Publication Release Date: December 4, 2006
- 7 -
Revision A6
W78L058A Special Function Registers (SFRs) and Reset Values
F8
FF
F0
+B
00000000
CHPENR
00000000
F7
E8
EF
E0
+ACC
00000000
+P4
xxxx1111
+PSW
00000000
+T2CON
00000000
XICON
00000000
+IP
00000000
+P3
00000000
+IE
00000000
+P2
11111111
+SCON
00000000
+P1
11111111
+TCON
00000000
+P0
11111111
E7
D8
DF
D0
D7
C8
RCAP2L
00000000
P4CONA
00000000
RCAP2H
00000000
P4CONB
00000000
TL2
00000000
SFRAL
00000000
TH2
00000000
SFRAH
00000000
CF
C0
SFRFD
00000000
SFRCN
00000000
CHPCON
0xx00000
C7
B8
BF
B0
P43AL
00000000
P42AL
00000000
P43AH
00000000
P42AH
00000000
B7
A8
P2ECON
0000xx00
AF
A0
A7
98
SBUF
xxxxxxxx
9F
90
P41AL
00000000
TH0
00000000
P40AL
00000000
P41AH
00000000
TH1
00000000
P40AH
00000000
97
88
TMOD
00000000
SP
00000111
TL0
00000000
DPL
00000000
TL1
00000000
DPH
00000000
8F
80
PCON
00110000
87
Notes:
1.The SFRs marked with a plus sign(+) are both byte- and bit-addressable.
2. The text of SFR with bold type characters are extension function registers.
Port 4
Port 4, address D8H, is a 4-bit multipurpose programmable I/O port. Each bit can be configured
individually by software. The Port 4 has four different operation modes.
Mode 0: P4.0
P4.3 is a bi-directional I/O port which is same as port 1. P4.2 and P4.3 also serve as
external interrupt
PSEN
and
INT2
if enabled.
Mode 1: P4.0
P4.3 are read strobe signals that are synchronized with
RD
signal at specified
addresses. These signals can be used as chip-select signals for external peripherals.
Mode 2: P4.0
P4.3 are write strobe signals that are synchronized with
WR
signal at specified
addresses. These signals can be used as chip-select signals for external peripherals.
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