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參數資料
型號: W741C260
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT Microcontroller(多次可編程4位的微控制器)
中文描述: 4-BIT, MROM, 4.19 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數: 23/92頁
文件大小: 488K
代理商: W741C260
W741C260
Publication Release Date: March 1998
- 23 -
Revision A3
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 and it
provides a high sink current to drive LEDs.
Port Status Register 0 (PSR0)
Port status register 0 is organized as 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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