參數(shù)資料
型號: μPD78F9177Y
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 104/150頁
文件大?。?/td> 653K
代理商: ΜPD78F9177Y
Preliminary Product Information
102
μ
PD78F9177Y
(4) External interrupt mode register 1 (INTM1)
INTM1 is used to specify an effective edge for INTP3.
INTM1 is manipulated using an 8-bit memory manipulation instruction.
A RESET input clears INTM1 to 00H.
Figure 7-5. Format of External Interrupt Mode Register 1
Cautions 1. Bits 2 to 7 must be fixed to 0.
2. Before setting INTM1, set the corresponding interrupt mask flag register to 1 to disable
interrupts.
To enable interrupts, clear (0) the corresponding interrupt request flag, then the
corresponding interrupt mask flag register.
0
0
0
0
ES31
0
0
ES30
INTM1
7
6
5
4
3
2
1
0
ES31
0
0
1
1
INTP3 effective edge selection
ES30
0
1
0
1
Falling edge
Rising edge
Not to be set
Both rising and falling edges
Symbol
Address
When reset
R/W
FFEDH
00H
R/W
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