參數資料
型號: UPD754244GS-XXX-GJG
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO20
封裝: 0.300 INCH, 0.65 MM PITCH, PLASTIC, SSOP-20
文件頁數: 25/90頁
文件大小: 602K
代理商: UPD754244GS-XXX-GJG
PD754144, 754244
29
Data Sheet U10040EJ2V1DS
8. INTERRUPT FUNCTION AND TEST FUNCTION
Figure 8-1 shows the interrupt control circuit. Each hardware device is mapped in the data memory
space.
The interrupt control circuit of the
PD754244 has the following functions.
(1) Interrupt function
Vectored interrupt function for hardware control, enabling/disabling the interrupt acknowledgement by
the interrupt enable flag (IE
×××) and interrupt master enable flag (IME).
Can set any interrupt start address.
Multiple interrupts wherein the order of priority can be specified by the interrupt priority select register
(IPS).
Test function of interrupt request flag (IRQ
×××). An interrupt generated can be checked by software.
Release the standby mode. A release interrupt can be selected by the interrupt enable flag.
(2) Test function
Test request flag (IRQ2) generation can be checked by software.
Release the standby mode. The test source to be released can be selected by the test enable flag.
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