參數(shù)資料
型號(hào): MB89P637-SH
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PDIP64
封裝: SHRINK, DIP-64
文件頁數(shù): 14/153頁
文件大?。?/td> 7326K
代理商: MB89P637-SH
HARDWARE CONFIGURATION
2-87
The meaning of each bit to be written is as follows:
[Bit 2] INTE: Testing bit
Bit 2 is used only for testing. Always write 0 in this bit.
[Bit 1] SEL0: Edge-polarity select bit
Bit 1 is used to control the input edge polarity of the INT0 pin.
[Bit 0] EIE0: Interrupt-enable bit
Bit 0 is used to enable an external-interrupt request by the INT0 pin.
(b) External-interrupt control register 2 (EIC2)
The EIC2 controls an interrupt by the INT2 and INT3 pins.
[Bit 7] EIR3: External-interrupt request flag
When the edge specified by the SEL3 bit is input to the INT3 pin, bit 7 is set to 1. When the EIE3 bit is
1, an interrupt request (IRQ1) is output if this bit is set.
The meaning of each bit to be read is as follows:
1 is always read when the Read Modify Write instruction is read.
The meaning of each bit to be written is as follows:
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