ml7084-001 Oki Semiconductor, ml7084-001 Datasheet - Page 126

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

(49) GPCR1
*1: Depends on the pin status.
This register (GPDA[1:0]) stores the input/output data of general-purpose input/output port A[1:0] (GPIOA[1:0]).
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.
If the port is configured as its secondary function by the primary/secondary function selection register, the register
value is updated by writing to any bit of this register, but the status of the corresponding pin does not change.
Furthermore, if GPMA[1:0] is configured as input, the status of the corresponding pin is read; if configured as output,
the value of the corresponding bit is read.
B7–B2 : Reserved bits. Do not change the initial values.
B1 : Data register for GPIOA[1]
B0 : Data register for GPIOA[0]
OKI Semiconductor
setting can be
Mode where
Initial value
changed
GPCR1
0: GPIOA[1]
1: DPO1
0: GPIOA[0]
1: DPO0
GPFA[1]
GPFA[0]
B7
⎯
#
0
0: Input
1: Output
0: Input
1: Output
0: Input
1: Output
0: Input
1: Output
GPMA[1]
GPMA[0]
B6
⎯
#
0
B5
⎯
0
#
Pin status
Value of GPDA[1]
Pin status
Value of GPDA[1]
Pin status
Value of GPDA[0]
Pin status
Value of GPDA[0]
B4
⎯
#
0
At read
At read
B3
⎯
#
0
No change in pin status
Written vaule is output from
the corresponding pin.
No change in pin status
No change in pin status
No change in pin status
Written vaule is output from
the corresponding pin.
No change in pin status
No change in pin status
B2
⎯
#
0
GPDA[1] GPDA[0]
At write
At write
B1
I/E
(*1)
FEDL7224-001FULL-01
ML7224-001TC
B0
I/E
(*1)
126/225
R/W
R/W