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參數資料
型號: W7411250
廠商: WINBOND ELECTRONICS CORP
英文描述: 4-BIT Microcontroller(4位的微控制器)
中文描述: 4位微控制器(第4位的微控制器)
文件頁數: 21/86頁
文件大小: 478K
代理商: W7411250
W741L250
Publication Release Date: March 1998
- 21 -
Revision A2
Reset
MOV PEF, #I
CLR PSR0
HCF.2
INT 2
Reset
CLR EVF, #I
EVF.2
HEF.2
IEF.2
dSignal
PEF.0
DATA BUS
PEF.3
Signal
PEF.1
Signal
PEF.2
Signal
D
ck
Q
R
PSR0.0
D
ck
Q
R
PSR0.1
D
ck
Q
R
PSR0.2
D
ck
Q
R
PSR0.3
D
ck
Q
R
RC.3
PM0.2
RC.2
PM0.2
RC.1
PM0.2
RC.0
PM0.2
SEF.0
SEF.3
SEF.1
SEF.2
edge
detector
edge
detector
edge
detector
edge
detector
Wake up from STOP mode
Figure 10. Architecture of Input Ports RC
Output Port RE
When the MOV RE, R instruction is executed, the data in the RAM will be output to port RE.
Port RE (RE.0 to RE.3) also provides high sink current output.
Port Status Register 0 (PSR0)
Port status register 0 is organized as a 4-bit binary register (PSR0.0 to PSR0.3). PSR0 can be read or
cleared by the MOVA R, PSR0, and CLR PSR0 instructions. The bit descriptions are as follows:
R
R
R
R
0
1
2
3
PSR0
Note: R means read only.
Bit 0 = 1 Signal change on RC.0.
Bit 1 = 1 Signal change on RC.1.
Bit 2 = 1 Signal change on RC.2.
Bit 3 = 1 Signal change on RC.3.
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