7480 Datasheet, PDF (16/98 Pages) Bi technologies – 7/8 Diameter 5-Turn Wirewound Precision Potentiometer

PRELIMINARY _{NSootimcee: pTahriasmisentroict} ^{alimfinitsalasrpeescuifbicjeactitotno. change.}
MITSUBISHI MICROCOMPUTERS
7480/7481 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Ports P14 – P17
Data bus
SIOE
SIOM
SRDY
Direction register
Port latch
SCS
SIOE
SIOM
SIOE
Direction register
Data bus
Port latch
SRDY
Data bus
SIOE
TE
SCLK output
Direction register
Port latch
SIOE
RE
Direction register
TXD
Data bus
Port latch
Data bus
Pull-up control
register
Tr6 to Tr9 are pull-up transistors.
Tr6
Port P17
Tr7
SCLK input
Port P16
Tr8
Port P15
RXD
Tr9
Port P14
Fig. 13 Block diagram of ports (2)
15