參數(shù)資料
型號: 38D5
廠商: Renesas Technology Corp.
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機
文件頁數(shù): 21/141頁
文件大小: 2027K
代理商: 38D5
Rev.3.01
REJ03B0158-0301
Aug 08, 2007
Page 21 of 134
38D5 Group
Fig. 14 Port block diagram (1)
(1) Ports P0, P1, P2
4
-P2
7
, P3
(6) Port P4
3
(5) Port P4
2
(3) Port P4
0
Data bus
Serial I/O1 mode selection bit
Serial I/O1 enable bit
Serial I/O1 clock output
Port latch
Direction
register
Pull-up control
Serial I/O input
Data bus
Port latch
Serial I/O enable bit
Receive enable bit
Direction
register
Pull-up control
Pull-up control
Direction
register
Data bus
Serial I/O1 mode selection bit
Serial I/O1 enable bit
S
RDY1
output enable bit
Serial I/O1 ready output
Port latch
(4) Port P4
1
Data bus
Serial I/O output
Serial I/O1 enable bit
Transmit enable bit
Port latch
Direction
register
Pull-up control
(2) Ports P2
0
-P2
3
Segment output disable bit
Direction
register
Data bus
Port latch
V
L3
/V
L2
V
L1
/V
SS
Segment data
Segment output disable bit
Direction
register
Data bus
Port latch
V
L3
/V
L2
V
L1
/V
SS
Segment data
Key input control
Key-on wakeup
interrupt input
P4
1
/TxD P-channel output disable bit
Serial I/O1 clock input
Serial I/O1 synchronous clock
selection bit
Serial I/O1 enable bit
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