3819 Datasheet, PDF (15/61 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS
3819 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
(9) Ports P50, P54, P64
Data bus
Direction
register
Port latch
Serial I/O input
A-D conversion input
Analog input pin selection bit
(10) Ports P51, P52, P55, P56, P65, P66
P-channel output disable signal
Output OFF control signal
Serial I/O port selection bit
Direction
register
Data bus
Port latch
(11) Ports P53, P57, P67
SOUT or SCLK
Serial clock input
(only P52, P56, P66)
A-D conversion input
Analog input pin selection bit
SRDY output enable bit
Direction
register
Data bus
Port latch
(12) Port P7
Serial ready output
or SCLK
CS input
(only P67)
A-D conversion input
Analog input pin selection bit
Direction
register
Data bus
Port latch
Fig. UA-4 Port block diagram (3)
A-D conversion input
Analog input pin selection bit
14