MITSUBISHI MICROCOMPUTERS
3827 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
(13) Ports P40, P71–P77
(12) Port P43
Pull-up control
Direction register
Direction register
Data bus
Port latch
Data bus
Port latch
TOUT/φ output control
Timer output
TOUT/φ selection bit
A-D trigger input
Except P71 to P77
φ output
(15) Ports P56, P57
(14) Port P55
Pull-up control
Pull-up control
Direction register
Direction register
Data bus
Port latch
Data bus
Port latch
D-A conversion output
D-A1, D-A2 output enable bit
VREF input switch
VREF input selection bit
CNTR1 interrupt input
Except P57
(17) Port P60
(16) Ports P64–P67
Pull-up control
Pull-up control
Direction register
Direction register
Port latch
Data bus
Data bus
Port latch
Serial I/O2 input
A-D conversion input
Analog input pin selection bit
A-D conversion input
Analog input pin selection bit
Fig. 12 Port block diagram (3)
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MITSUBISHI [ Mitsubishi Group ]
