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參數(shù)資料
型號: W921E880A
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-Bit Microcontroller(4位微控制器)
中文描述: 4-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 37/57頁
文件大小: 372K
代理商: W921E880A
W921E880A/W921C880
Publication Release Date: September 1998
- 37 -
Revision A2
Hold Mode Operation Flow Chart
In
HOLD
Mode
Flag Set
PC <- (PC+1)
No
Yes
No
Yes
Yes
No
Yes
No
HOLD
HMRF
Hold Release
Flag Set
Execute
Interrupt Service Routine
IINTCT
Flag Set
IINTCT
Reset ENINT Flag and
individual Request Flag
Execute
Interrupt Service Routine
Reset ENINT Flag and
individual Request Flag
TM0-3; Serial;
Comparator; Falling change
occurs at INT0, P4.0-P4.2
6.13.3 Stop Mode
The
μ
P enters the STOP MODE only if the stop instruction is executed. All chip functions are
disabled because both of the oscillators are stopped.
The stop mode can be released by the low level of the
RESET
pin, INT0 pin, P4 port, PA port or PB
port. The STOP CONDITION RELEASE FLAG (STPRF ADDRESSS = 035H) is the STOP mode
release control reg.
STPRF REG.: (ADDRESS = 035H)
(Default data = 8H)
b3
b2
b1
b0
0:
1:
0:
1:
Stop released by INT0 (P4.3) is disable
1: Stop released by INT0 (P4.3) is enable
0:
1:
0:
Stop released by any pin of PB is disable
Stop released by any pin of PB is enable
Stop released by any pin of P4.0-P4.2 is disable
Stop released by any pin of P4.0-P4.2 is enable
Stop released by any pin of PA is disable
Stop released by any pin of PA is enable
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