Datasheet

ST10F269 12 - PARALLEL PORTS
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12.11.1 - Alternate Functions of Port 8
The 8 lines of Port 8 serve as capture inputs or as
compare outputs (CC23IO...CC16IO) for the
CAPCOM2 unit.
The usage of the port lines by the CAPCOM unit,
its accessibility via software and the precautions
are the same as described for the Port 2 lines.
As all other capture inputs, the capture input
function of pins P8.7...P8.0 can also be used as
external interrupt inputs (200ns sample rate at
40MHz CPU clock on PQFP144 devices and
250ns sample rate at 32MHz CPU clock on
TQFP144 devices).
The Table 25 summarizes the alternate functions
of Port 8.
Table 25 : Port 8 Alternate Functions
Port 7 Alternate Function
P8.0
P8.1
P8.2
P8.3
P8.4
P8.5
P8.6
P8.7
CC16IO Capture input / compare output channel 16
CC17IO Capture input / compare output channel 17
CC18IO Capture input / compare output channel 18
CC19IO Capture input / compare output channel 19
CC20IO Capture input / compare output channel 20
CC21IO Capture input / compare output channel 21
CC22IO Capture input / compare output channel 22
CC23IO Capture input / compare output channel 23
Figure 42 : Port 8 I/O and Alternate Functions
Port 8
Alternate FunctionGeneral Purpose Input / Output
P8.7
P8.6
P8.5
P8.4
P8.3
P8.2
P8.1
P8.0
CC23IO
CC22IO
CC21IO
CC20IO
CC19IO
CC18IO
CC17IO
CC16IO