參數(shù)資料
型號(hào): M34559G6
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述: 單芯片4位微機(jī)的CMOS
文件頁數(shù): 60/148頁
文件大?。?/td> 1732K
代理商: M34559G6
Rev.1.04
REJ03B0188-0104
Aug 23, 2007
Page 60 of 146
4559 Group
Table 27 Interrupt control register
Note 1. “R” represents read enabled, and “W” represents write enabled.
Note 2. When the contents of I1
2
and I1
3
are changed, the external interrupt request flag EXF0 may be set.
Interrupt control register I1
at reset : 0000
2
at power down : state retained
R/W
TAI1/TI1A
I1
3
INT pin input control bit (Note 2)
0
1
INT pin input disabled
INT pin input enabled
Falling waveform (“L” level of INT pin is recognized with the SNZI0
instruction)/“L” level
Rising waveform (“H” level of INT pin is recognized with the SNZI0
instruction)/“H” level
One-sided edge detected
Both edges detected
Timer 1 count start synchronous circuit not selected
Timer 1 count start synchronous circuit selected
I1
2
Interrupt valid waveform for INT pin/
return level selection bit (Note 2)
0
1
I1
1
INT pin edge detection circuit control bit
0
1
0
1
I1
0
INT pin timer 1 count start synchronous
circuit selection bit
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