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Port Control Register A (PCRA)
Bit
Initial value
Read/Write
PCRA controls whether each of port A pins PA
Setting a PCRA bit to 1 makes the corresponding pin an output pin, while clearing the bit to 0
makes the pin an input pin. PCRA and PDRA settings are valid when the corresponding pins are
designated for general-purpose input/output by LPCR.
Upon reset, PCRA is initialized to H'F0.
PCRA is a write-only register, which is always read as all 1s.
7
6
5
1
1
1
4
3
PCRA
3
1
0
W
to PA
functions as an input pin or output pin.
3
0
Rev. 6.00, 08/04, page 227 of 628
2
1
PCRA
PCRA
PCRA
2
1
0
0
W
W
0
0
0
W
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