Format Of Port Mode Register 0 (Pm0) - NEC 78K0 User Manual

(5) Port mode register 0 (PM0)
This register sets port 0 input/output in 1-bit units.
When using the P01/TO00/TI010 and P06/TO01
output latches of P01 and P06 to 0.
When using the P01/TO00/TI010 and P06/TO01
this time, the output latches of P01 and P06 may be 0 or 1.
PM0 can be set by a 1-bit or 8-bit memory manipulation instruction.
RESET input sets PM0 to FFH.
184
CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 AND 01
Note
/TI011
Note
/TI011
Figure 7-14. Format of Port Mode Register 0 (PM0)
Address: FF20H After reset: FFH
Symbol 7 6 5
PM0 1 PM06 PM05
PM0n P0n pin I/O mode selection (n = 0 to 6)
0 Output mode (output buffer on)
1 Input mode (output buffer off)
Note Available only for the
User's Manual U15947EJ2V0UD
Note
pins for timer output, clear PM01 and PM06 and the
Note
pins for timer input, clear PM01 and PM06 to 0. At
R/W
4 3 2 1
PM04 PM03 PM02 PM01 PM00
µ
PD780146, 780148, and 78F0148.
*
0