UPD17010 Datasheet, PDF (210/424 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE DEDICATED TO DIGITAL TUNING SYSTEM

(2) Port 0B bit I/O select register (P0BBIO)
Name
Port 0B bit l/O
select register
(P0BBIO)
Flag Symbol
b3 b2 b1 b0
PPPP
0000
BBBB
BBBB
IIII
OOOO
3210
Address
36H
Read/
Write
R/W
Sets input/output mode
0 Sets P0B0 pin in input mode
1 Sets P0B0 pin in output mode
Sets input/output mode
0
Sets P0B1 pin in input mode
1
Sets P0B1 pin in output mode
Sets input/output mode
0
Sets P0B2 pin in input mode
1
Sets P0B2 pin in output mode
Sets input/output mode
0
Sets P0B3 pin in input mode
1
Sets P0B3 pin in output mode
Power-ON
Clock stop
CE
0000
0000
0000
µPD17010
210