參數(shù)資料
型號: 4571
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述: 單芯片4位微機的CMOS
文件頁數(shù): 13/126頁
文件大?。?/td> 1627K
代理商: 4571
Rev.1.02
May 25, 2007
Page 11 of 124
REJ03B0179-0102
4571 Group
Fig 6.
Port block diagram (4)
Key-on wakeup input
SNZI0 instruction
(Note 1)
L11
0
1
Edge detection circuit
Level detection circuit
P20/INT0
I13
I12
Falling
0
1
Rising
L10
I11
0
1
One-sided edge
detection circuit
Both edges
detection circuit
Skip
EXF0
External 0
interrupt
Timer 1 count start
synchronization
circuit input
(Note 2)
(Note 3)
Note 1:
This symbol represents a parasitic diode on the port.
2: When
IX2= 0(X=0 or 1) is 0, “L” level is detected.
When IX2 is 1, “H” level is detected.
3: When IX2 is 0, falling edge is detected.
When IX2 is 1, rising edge is detected.
(Note 1)
Key-on wakeup input
SNZI1 instruction
(Note 1)
L13
0
1
Edge detection circuit
Level detection circuit
P21/INT1
I23
I22
Falling
0
1
Rising
L12
I21
0
1
One-sided edge
detection circuit
Both edges
detection circuit
Skip
EXF1
External 1
interrupt
(Note 2)
(Note 3)
(Note 1)
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