參數(shù)資料
型號(hào): HD404082
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉(zhuǎn)換器的低壓微計(jì)算機(jī))
中文描述: 低電壓如同在微機(jī)芯片的A / D轉(zhuǎn)換器(帶片上的A / D轉(zhuǎn)換器的低壓微計(jì)算機(jī))
文件頁數(shù): 40/162頁
文件大小: 482K
代理商: HD404082
HD404374/HD404384/HD404389/HD404082/HD404084 Series
40
Interrupt enable flag (IE: $000,0):
The interrupt enable flag controls interrupt enabling/disabling of all interrupt requests as shown in table 4.
The interrupt enable flag is reset by interrupt handling and set by the RTNI instruction.
Table 4
Interrupt Enable Flag (IE: $000,0)
Interrupt Enable Flag (IE)
Interrupt Enabling/Disabling
0
Interrupts disabled
1
Interrupts enabled
Wakeup interrupt request flag (IFWU: $000,2):
The wakeup interrupt request flag (IFWU) is set by the detection of a falling edge in
WU
0
input in active
mode, subactive mode,watch mode, or standby mode. In stop mode, when a falling edge is detected at the
wakeup pin, the MCU waits for the oscillation settling time, then switches to active mode. When a
transition is made from stop mode to active mode with IE set to 1 and IMWU cleared to 0, wakeup
interrupt handling is executed after the switch to active mode. The wakeup interrupt request flag (IFWU) is
not set in this case (table 5).
Table 5
Wakeup Interrupt Request Flag (IFWU: $000,2)
Wakeup Interrupt Request Flag
(IFWU)
Interrupt Request
0
No wakeup interrupt request
1
Wakeup interrupt request generated
Wakeup Interrupt Mask (IMWU: $000,3):
This bit masks an interrupt request by the wakeup interrupt request flag (table 6).
Table 6
Wakeup Interrupt Request Mask (IMWU: $000,3)
Wakeup Interrupt Mask (IMWU)
Interrupt Request
0
Wakeup interrupt request enabled
1
Wakeup interrupt request masked (held pending)
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