C868_02 Datasheet, PDF (91/244 Pages) Infineon Technologies AG – 8 - Bit CMOS Microcontroller

C868
4.7.2 Timer T13
On-Chip Peripheral Components
4.7.2.1 Overview
The timer T13 is built similar to T12, but only with one channel in compare mode. The
counter can only count up (similar to the edge-aligned mode of T12). The T13 shadow
transfer in case of a period-match is enabled by bit STE13 in register TCTR0. During the
T13 shadow transfer, the contents of register CC63SR is transferred to register CC63R.
Both registers can be read by SW, whereas only the shadow register can be written by
SW.
The bits CC63PS, T13IM and PSL63 have shadow bits. The contents of the shadow bits
is transferred to the actually used bits during the T13 shadow transfer. Write actions
target the shadow bits, read actions deliver the value of the actually used bit.
= 0 ? zero-match
=?
16
period-match
T13PR
=?
16
compare-match
CC63R
T13PS
T13 shadow transfer
CC63SR
16
counter
register T13
T13clk
Figure 4-26 T13 Overview
Timer T13 counts according to the same counting and switching rules as timer T12 in
edge-aligned mode.
User’s Manual
4-47
V 0.4, 2002-01