MC68HC08AZ16 Datasheet, PDF (347/527 Pages) Motorola, Inc – HCMOS Microcontroller Unit

I/O Ports
When bit DDRHx is a logic one, reading address $000B reads the PTHx
data latch. When bit DDRHx is a logic zero, reading address $000B
reads the voltage level on the pin. The data latch can always be written,
regardless of the state of its data.
MC68HC08AZ32
346
I/O Ports
26-io
MOTOROLA