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参数资料
型号： ST92E141K4D1
厂商： STMICROELECTRONICS
元件分类： 微控制器/微处理器
英文描述： 16-BIT, UVPROM, 25 MHz, MICROCONTROLLER, CDIP32
封装： WINDOWED, SHRINK, CERAMIC, DIP-32
文件页数： 137/178页
文件大小： 1097K
代理商： ST92E141K4D1
61/178
ST92141 - INTERRUPTS
WAKE-UP / INTERRUPT LINES MANAGEMENT UNIT (Cont’d)
WAKE-UP
TRIGGER
REGISTER
HIGH
(WUTRH)
R252 - Read/Write
Register Page: 57
Reset Value: 0000 0000 (00h)
Bit 7:0 = WUT[15:8]:
Wake-Up Trigger Polarity
Bits
These bits are set and cleared by software.
0: The corresponding WUPx pending bit will be set
on the falling edge of the input wake-up line.
1: The corresponding WUPx pending bit will be set
on the rising edge of the input wake-up line.
WAKE-UP TRIGGER REGISTER LOW (WUTRL)
R253 - Read/Write
Register Page: 57
Reset Value: 0000 0000 (00h)
Bit 7:0 = WUT[7:0]:
Wake-Up Trigger Polarity Bits
These bits are set and cleared by software.
0: The corresponding WUPx pending bit will be set
on the falling edge of the input wake-up line.
1: The corresponding WUPx pending bit will be set
on the rising edge of the input wake-up line.
WARNING
1. As the external wake-up lines are edge trig-
gered, no glitches must be generated on these
lines.
2. If either a rising or a falling edge on the external
wake-up lines occurs while writing the WUTRH
or WUTRL registers, the pending bit will not be
set.
WAKE-UP PENDING REGISTER HIGH
(WUPRH)
R254 - Read/Write
Register Page: 57
Reset Value: 0000 0000 (00h)
Bit 7:0 = WUP[15:8]:
Wake-Up Pending Bits
These bits are set by hardware on occurrence of
the trigger event on the corresponding wake-up
line. They must be cleared by software. They can
be set by software to implement a software inter-
rupt.
0: No Wake-up Trigger event occurred
1: Wake-up Trigger event occurred
WAKE-UP PENDING REGISTER LOW (WUPRL)
R255 - Read/Write
Register Page: 57
Reset Value: 0000 0000 (00h)
Bit 7:0 = WUP[7:0]:
Wake-Up Pending Bits
These bits are set by hardware on occurrence of
the trigger event on the corresponding wake-up
line. They must be cleared by software. They can
be set by software to implement a software inter-
rupt.
0: No Wake-up Trigger event occurred
1: Wake-up Trigger event occurred
Note: To avoid losing a trigger event while clear-
ing the pending bits, it is recommended to use
read-modify-write
instructions
(AND,
BRES,
BAND) to clear them.
70
WUT15 WUT14 WUT13 WUT12 WUT11 WUT10
WUT9
WUT8
70
WUT7
WUT6
WUT5
WUT4
WUT3
WUT2
WUT1
WUT0
70
WUP15 WUP14 WUP13 WUP12 WUP11 WUP10
WUP9
WUP8
70
WUP7
WUP6
WUP5
WUP4
WUP3
WUP2
WUP1
WUP0
1
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