ml7084-001 Oki Semiconductor, ml7084-001 Datasheet - Page 129

• Manufacturer Part Number: ml7084-001
• Description: 4ch Voip Codec
• Manufacturer: Oki Semiconductor

(52) GPCR4
*1: Depends on the pin status.
This register (GPDB[3:0]) stores the input/output data of general-purpose input/output port B[3:0] (GPIOB[3:0]).
When it is set as a general-purpose output port, if a value is written to any bit of this register, the written value is
output from the corresponding pin. Also in this case, if any bit of this register is read, the value of the corresponding
bit is read.
When it is set as a general-purpose input port, if any bit of this register is read, the status of the corresponding pin can
be read. Also in this case, if a value is written to any bit of this register, the register value is updated but the status of
the pin does not change.
B7–B4 : Reserved bits. Do not change the initial values.
B3 : Data register for GPIOB[3]
B2 : Data register for GPIOB[2]
B1 : Data register for GPIOB[1]
B0 : Data register for GPIOB[0]
OKI Semiconductor
setting can be
Mode where
Initial value
changed
GPCR4
0: Input
1: Output
0: Input
1: Output
0: Input
1: Output
0: Input
1: Output
B7
⎯
#
0
GPMB[3]
GPMB[2]
GPMB[1]
GPMB[0]
B6
⎯
#
0
B5
⎯
0
#
Pin status
Value of GPDB[3]
Pin status
Value of GPDB[2]
Pin status
Value of GPDB[1]
Pin status
Value of GPDB[0]
B4
⎯
#
0
At read
At read
At read
At read
GPDB[3] GPDB[2] GPDB[1]
B3
I/E
(*1)
No change in pin status
Written vaule is output from
the corresponding pin.
No change in pin status
Written vaule is output from
the corresponding pin.
No change in pin status
Written vaule is output from
the corresponding pin.
No change in pin status
Written vaule is output from
the corresponding pin.
B2
I/E
(*1)
At write
At write
At write
At write
B1
I/E
(*1)
FEDL7224-001FULL-01
GPDB[0]
ML7224-001TC
B0
I/E
(*1)
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R/W
R/W