Table of Contents
Advertisement
(4) Port mode register 3 (PM3)
This register sets port 3 input/output in 1-bit units.
When using the P30/TO0 pin for timer output, set PM30 and the output latch of P30 to 0.
PM3 is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input sets PM3 to FFH.
Symbol
7
6
5
PM37
PM36 PM35 PM34 PM33 PM32 PM31 PM30
PM3
132
CHAPTER 6 16-BIT TIMER/EVENT COUNTER
Figure 6-7. Format of Port Mode Register 3
4
3
2
1
0
User's Manual U11302EJ4V0UM
Address
After reset
FF23H
FFH
PM3n P3n pin I/O mode selection (n = 0 to 7)
0
Output mode (output buffer on)
1
Input mode (output buffer off)
R/W
R/W
Advertisement
Table of Contents
