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參數資料
| 型號： | UPD75312BGK |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCOMPUTER |
| 中文描述： | 4位單片機 |
| 文件頁數： | 29/77頁 |
| 文件大?。?/td> | 587K |
| 代理商： | UPD75312BGK |
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29
μ
PD75312B, 75316B
6.
INTERRUPT FUNCTION
The
μ
PD75316B has six interrupt sources which enable multiple interrupt by software control. It also has two
test sources, of which the INT2 has two edge detection testable inputs.
Table 6-1. Types of Interrupt Sources
Vectored interrupt request
signal (vector table address)
INTBT
(standard interval signal from basic
interval timer)
1
VRQ1 (0002H)
INT4
(both rising and falling edge
detection are valid.)
INT0
(Rising or falling detection edge is
selected.)
External
2
VRQ2 (0004H)
INT1
External
3
VRQ3 (0006H)
INTCSI
(serial data transfer end signal)
Internal
4
VRQ4 (0008H)
INTT0
(match signal between the count
register and modulo register of
programmable timer/counter)
Internal
5
VRQ5 (000AH)
INT2
Note 2
(rising edge detection of input to
INT2 pin or falling edge detection of
input to KR0-KR7)
External
Testable input signal (IRQ2 and IRWQ are set.)
INTW
Note 2
(signal from clock timer)
Internal
Notes 1.
Interrupt priority is serviced according to the order of priority, when several interrupt requests are
generated simultaneously.
Test source. They are affected by the interrupt enable flag in the same way as the interrupt source,
but no vectored interrupt is generated.
2.
The
μ
PD75316B interrupt control circuit has the following functions:
Hardware control vectored interrupt function that can control interrupt acknowledgement by interrupt flag
(IE
×××
) and interrupt master enable flag (IME).
Interrupt start address can be set.
Interrupt request flag (IRQ
×××
) test function (interrupt generation confirmation by software possible).
Standby mode release (selection of interrupt that releases the standby mode by interrupt enable flag possible).
Internal/external
Interrupt priority
Note 1
Interrupt sources
Internal
External
相關PDF資料 |
PDF描述 |
|---|---|
| UPD75316B | 4-BIT SINGLE-CHIP MICROCOMPUTER |
| UPD75316BGC | 4-BIT SINGLE-CHIP MICROCOMPUTER |
| UPD75316BGK | 4-BIT SINGLE-CHIP MICROCOMPUTER |
| UPD75312 | 4-BIT SINGLE-CHIP MICROCOMPUTER |
| UPD75316GFA | 4-BIT SINGLE-CHIP MICROCOMPUTER |
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