ST10F296E Datasheet, PDF (165/346 Pages) STMicroelectronics – High performance 16-bit CPU with DSP functions

ST10F296E
Parallel ports
13.10.2
Alternate functions of Port 8
All Port 8 lines (P8.7 to P8.0) support capture inputs or compare outputs (CC23IO to
CC16IO) for the CAPCOM2 unit (see Table 101). See Section 13.4.2: Alternate functions of
Port 2 on page 134 for the use of the port lines by the CAPCOM unit, its accessibility via
software, and precautions, all of which are the same as described for Port 2 lines.
The capture input function of pins P8.7 to P8.0 can be used as external interrupt inputs with
a sample rate of eight CPU clock cycles. The pins of Port 8 combine internal bus data and
alternate data output before the port latch input.
Table 101. Port 8 alternate functions
Port 8
pin
Alternate function (a)
Alternate function (b)
t(s) ^P8.0
c ^P8.1
u _P8.2
rod ^{) P8.3}
P _{t(s P8.4}
lete ^{uc P8.5}
d _P8.6
so ^ro _P8.7
CC16IO Capture input/compare output ch. 16 -
CC17IO Capture input/compare output ch. 17 -
CC18IO Capture input/compare output ch. 18 -
CC19IO Capture input/compare output ch. 19 -
CC20IO Capture input/compare output ch. 20 -
CC21IO Capture input/compare output ch. 21 -
CC22IO Capture input/compare output ch. 22 RxD1 XASC receive data input/output
CC23IO Capture input/compare output ch. 23 TxD1 XASC transmit data output
- ^{Ob te P Figure 56. Port 8 I/O and alternate functions}
t(s) ^{ole Alternate function}
solete ^{Prroodduucct(s) - Obs Port 8}
-
-
-
-
-
-
-
-
P8.7
P8.6
P8.5
P8.4
P8.3
P8.2
P8.1
P8.0
O_O^b_bsolete ^{PGeneral purpose input/output}
(a)
-
-
-
-
-
-
-
-
CC23IO
CC22IO
CC21IO
CC20IO
CC19IO
CC18IO
CC17IO
CC16IO
CAPCOM2 input/output
(b)
-
-
-
-
-
-
-
-
TxD1
RxD1
-
-
-
-
-
-
XASC input/output
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