參數(shù)資料
型號: 3820
廠商: Mitsubishi Electric Corporation
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): 15/66頁
文件大?。?/td> 1093K
代理商: 3820
15
MITSUBISHI MICROCOMPUTERS
3820 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Fig. 5 Port block diagram (1)
(3)Ports P3
0
–P3
7
V
L2
/V
L3
V
L1
/V
SS
(1)Ports P0,P1
Segment output enable bit
V
L2
/V
L3
V
L1
/V
SS
(5)Port P4
1
Data bus
Pull-down control
Segment output enable bit
Data bus
Direction register
Port latch
Pull-down control
Segment output enable bit
Note. Bit 0 of port P0 direction register and
port P1 direction register.
φ
φ
output control bit
Direction register
Pull-up control
Data bus
Port latch
Direction register
Pull-up control
Data bus
Port latch
(7)Port P4
5
Serial I/O1 output
Serial I/O1 enable bit
Transmission enable bit
P4
5
/T
X
D P-channel output disable bit
(6)Port P4
4
(4)Port P4
0
(2)Ports P2,P4
2
,P4
3
,P5
7
Direction register
Direction register
Data bus
Port latch
Pull-up control
Key input (Key-on wake up) interrupt input
INT
0
–INT
2
interrupt input
Pull-up control
Reception enable bit
Serial I/O1 enable bit
Serial I/O1 input
Data bus
Port latch
Data bus
(8)Port P4
6
Serial I/O1 clock input
Direction register
Pull-up control
Data bus
Port latch
Serial I/O1 clock output
Serial I/O1 mode selection bit
Serial I/O1 enable bit
Serial I/O1 synchronization clock
selection bit
Serial I/O1 enable bit
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