C868_02 Datasheet, PDF (82/244 Pages) Infineon Technologies AG – 8 - Bit CMOS Microcontroller

C868
On-Chip Peripheral Components
T12R
T12
T12_xST_se
T12_xST_re
T12
prescaler
fper
end_of_period in
single shot mode
CCPOSx=’1’
T12_xST_sen
A _{T12_xST_so}
N
D
O
R
OR
AND
A ^T12_xST_ro
N
D
T12_xST_ren
OR
MSEL6x=
’0001’ or ’0010’ or ’0011’
or ’1000’ (ch 1, 2 only)
MSEL6x=
’1001’
Figure 4-16 T12 Compare Logic
The T12 compare output lines T12_xST_so (to set bit CC6xST) and T12_xST_ro (to
reset bit CC6xST) are also used to trigger the corresponding interrupt flags and to
generate interrupts. The signal T12_xST_so indicates the interrupt event for the rising
edge (ICC6xR), whereas the signal T12_xST_ro indicates the falling edge event
(ICC6xF) in compare mode.
The compare state bits indicate the occurrence of a capture or compare event of the
corresponding channel. It can be set (if it is ’0’) by the following events:
• upon a software set (CC6xS)
• upon a compare set event (see switching rules) if the T12 runs and if the T12 set event
is enabled
• upon a capture set event
The bit CC6xST can be reset (if it is ’1’) by the following events:
• upon a software reset (CC6xR)
• upon a compare reset event (see switching rules) if the T12 runs and if the T12 reset
event is enabled (including in single shot mode the end of the T12 period)
• upon a reset event in the hysteresis-like control mode
User’s Manual
4-38
V 0.4, 2002-01