Rev. 1.00, 09/03, page 191 of 704
7.10.4
Port Function Control Register (PFCR)
PFCR controls the I/O port.
Bit
Bit Name
Initial Value
R/W
Description
7 to 5
All
0 R/W
Reserved
These bits are always read as 0. The write value
should always be 0.
4 CS3E 0
R/W
CS3
Output Enable
Selects to enable or disable the
CS3
output.
0: PA7 is designated as I/O port
1: PA7 is designated as
CS3
output pin
3 CS2E 0
R/W
CS2
Output Enable
Selects to enable or disable the
CS2
output.
0: P91 is designated as I/O port
1: P91 is designated as
CS2
output pin
2 CS1E 0
R/W
CS1
Output Enable
Selects to enable or disable the
CS1
output.
0: P92 is designated as I/O port
1: P92 is designated as
CS1
output pin
1 LWROE 0
R/W
LWR
Output Enable
Selects to enable or disable the
LWR
output.
0: P90 is designated as I/O port
1: P90 is designated as
LWR
output pin
0 ASOE 0
R/W
AS
Output Enable
Selects to enable or disable the
AS
output.
0: P95 is designated as I/O port
1: P95 is designated as
AS
output pin
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