參數(shù)資料
型號: M34559G6
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述: 單芯片4位微機的CMOS
文件頁數(shù): 9/148頁
文件大?。?/td> 1732K
代理商: M34559G6
Rev.1.04
REJ03B0188-0104
Aug 23, 2007
Page 9 of 146
4559 Group
PORT BLOCK DIAGRAM
Fig 3.
Port block diagram (1)
FR2
0
D
4
(Note 2)
S
R
Q
Notes 1.
This symbol represents a parasitic diode on the port.
2. Applied potential to these ports must be V
DD
or less.
3. i represents bits 0 to 3.
4. As for details, refer to the external interrupt structure.
Register Y
Decoder
Skip decision
SZD instruction
SD instruction
RD instruction
CLD instruction
FR1i
(Note 1)
D
0
D
3
(Note 2)
S
R
Q
D
5
/INT(Note 2)
External 0 interrupt
External 0 interrupt circuit
Key-on wakeup input
Timer 1 count start
synchronous circuit input
FR2
1
S
R
Q
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 3)
Register Y
Decoder
Skip decision
SZD instruction
SD instruction
RD instruction
CLD instruction
Register Y
Decoder
Skip decision
SZD instruction
SD instruction
RD instruction
CLD instruction
(Note 4)
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