參數(shù)資料
型號(hào): UPD75212A
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述: 4位單片機(jī)
文件頁數(shù): 28/70頁
文件大小: 516K
代理商: UPD75212A
28
μ
PD75212A
6.
INTERRUPT FUNCTIONS
The
μ
PD75212A has eight types of interrupt sources and can generate multiple interrupts with priority order.
It is also equipped with two types of test sources. INT2 is an edge detected testable input.
The
μ
PD75212A interrupt control circuit has the following functions:
Hardware-controller vectored interrupt function which can control interrupt acknowledge with the interrupt
enable flag (IE
×××
) and the interrupt master enable flag (IME).
Function of setting any interrupt start address.
Multiple interrupt function which can specify priority order with the interrupt priority select register (IPS).
Interrupt request flag (IRQ
×××
) test function. (Interrupt generation can be checked by software.)
Standby mode release function. (Interrupt to be released by interrupt enable flag can be selected.)
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