C868_02 Datasheet, PDF (105/244 Pages) Infineon Technologies AG – 8 - Bit CMOS Microcontroller

C868
On-Chip Peripheral Components
Register T12PR contains the period value for timer T12. The period value is compared
to the actual counter value of T12 and the resulting counter actions depend on the
defined counting rules. This register has a shadow register and the shadow transfer is
controlled by bit STE12. A read action by SW delivers the value which is currently used
for the compare action, whereas the write action targets a shadow register. The shadow
register structure allows a concurrent update of all T12-related values.
T12PRL
Timer T12 Period Register, Low Byte
7
6
5
4
3
[Reset value: 00_H]
2
1
0
T12PV7..0
rwh
T12PRH
Timer T12 Period Register, High Byte
7
6
5
4
3
[Reset value: 00_H]
2
1
0
T12PV15..8
rwh
Field
T12PV
Bits Typ Description
[7:0] of rwh T12 Period Value
T12
The value T12PV defines the counter value for T12,
PRL,
which leads to a period-match. When reaching this
[7:0] of
value, the timerT12 is set to zero (edge-aligned
T12
mode) or changes its count direction to down
PRH
counting (center-aligned mode).
User’s Manual
4-61
V 0.4, 2002-01