ST10R272L - PARALLEL PORTS
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The pins of Port 2 combine internal bus data and alternate data output before the port latch
input.
7.4
Port 3
If this 15-bit port is used for general purpose I/O, the direction of each line can be configured
via the corresponding direction register DP3. Most port lines can be switched into push/pull
or open drain mode via the open drain control register ODP3 (pins P3.15, P3.14 and P3.12
do not support open drain mode!).
Figure 32 Block diagram of a port 2 pin
y = 11...8
