參數(shù)資料
型號(hào): MC68HC05T7B
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56
封裝: SDIP-56
文件頁數(shù): 2/109頁
文件大?。?/td> 9008K
代理商: MC68HC05T7B
External Interrupt Module (IRQ)
Operation
MC68HC705KJ1MC68HRC705KJ1MC68HLC705KJ1 — Rev. 3.0
Technical Data
MOTOROLA
External Interrupt Module (IRQ)
101
Figure 9-1. IRQ Module Block Diagram
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
IRQ Status and Control
Register (ISCR)
Read:
IRQE
00
0
IRQF
0
Write:
R
IRQR
Reset:
10
0
00
= Unimplemented
R
= Reserved
Figure 9-2. IRQ Module I/O Register Summary
Table 9-1. I/O Register Address Summary
Register:
ISCR
Address:
$000A
PIRQ
LEVEL-SENSITIVE TRIGGER
PA3
PA2
PA1
IRQ
PA0
VDD
(MOR LEVEL BIT)
RESET
IRQ VECTOR FETCH
EXTERNAL
INTERRUPT
REQUEST
(MOR)
TO BIH & BIL
INSTRUCTION
PROCESSING
IRQF
IRQR
IRQE
DQ
CK
IRQ
CLR
LATCH
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