UPD17717 Datasheet, PDF (101/408 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED HARDWARE FOR DIGITAL TUNING SYSTEM

µPD17717, 17718, 17719
(2) Port 0B bit I/O selection register
Name
Port 0B bit I/O selection
Flag symbol
b3 b2 b1 b0
PP PP
00 00
BB BB
BB BB
II II
OO OO
32 10
Address
(BANK15)
6EH
Read/Write
R/W
Power-ON reset
WDT&SP reset
CE reset
Clock stop
Sets input/output mode of port
0 Sets P0B0 pin in input mode
1 Sets P0B0 pin in output mode
0
1
0
1
0
1
Sets input/output mode of port
Sets P0B1 pin in input mode
Sets P0B1 pin in output mode
Sets input/output mode of port
Sets P0B2 pin in input mode
Sets P0B2 pin in output mode
Sets input/output mode of port
Sets P0B3 pin in input mode
Sets P0B3 pin in output mode
0000
0000
Retained
Retained
101