M32C8A Datasheet, PDF (167/372 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M32C/80 Series

M32C/8A Group
15. Timers (Timer A)
Up/Down Select Register⁽¹⁾
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
UDF
Address
0344h
After Reset
00h
Bit Symbol
Bit Name
Function
RW
TA0UD
Timer A0 up/down select bit⁽²⁾
0: Decrement
RW
1: Increment
TA1UD
Timer A1 up/down select bit⁽²⁾
0: Decrement
RW
1: Increment
TA2UD
Timer A2 up/down select bit⁽²⁾
0: Decrement
RW
1: Increment
TA3UD
Timer A3 up/down select bit⁽²⁾
0: Decrement
RW
1: Increment
TA4UD
Timer A4 up/down select bit⁽²⁾
0: Decrement
RW
1: Increment
TA2P
Timer A2
two-phase pulse signal
processing function select bit⁽³⁾
0: Two-phase pulse signal processing function
disabled
1: Two-phase pulse signal processing function
enabled
WO
TA3P
Timer A3
two-phase pulse signal
processing function select bit⁽³⁾
0: Two-phase pulse signal processing function
disabled
1: Two-phase pulse signal processing function
enabled
WO
Timer A4
0: Two-phase pulse signal processing function
disabled
TA4P
two-phase pulse signal
processing function select bit⁽³⁾
1: Two-phase pulse signal processing function
enabled
WO
NOTES:
1. Read-modify-write instructions cannot be used to set the UDF register. Refer to Usage Notes for details.
2. This bit is enabled when the MR2 bit in the TAiMR register (i = 0 to 4) is set to 0 (the UDF register causes increment/decrement
switching) in event counter mode.
3. Set these bits to 0 when not using the two-phase pulse signal processing function.
Figure 15.10 UDF Register
Rev.1.00 Jul 15, 2007 Page 150 of 352
REJ09B0385-0100