CX82100 Home Network Processor Data Sheet
9.3.9
GPIO Data Output Register 2 for GPIO[31; 27:24; 22:16] (GPIO_DATA_OUT2:
0x003500D0)
The GPIO Data Output Register 2 contains read/write data output bits and corresponding
write-only output mask bits for GPIO[31; 27:24; 22:16].
Writing a 1 to an output mask bit (GPIO_DOMSKx) enables the level corresponding to
associated data output bit (GPIO_DOUTx) onto the associated GPIO pin when the
associated direction bit (GPIO_OEx) is a 1; if the GPIO_OEx is a 0, there is no effect.
Writing a 0 to GPIO_DOMSKx has no effect.
Bit(s)
Type
WO
Default
16’b0
Name
GPIO_DOMSK{X},
31≥X≥16,
Description
GPIO[X] Output Mask, 31≥X≥16.
31:16;
31≥Y≥16,
Y = Bit #
15:0;
15≥Y≥0,
Y = Bit #
Read: Reads a 0.
X = Y
Write: GPIO_DOUT[X] (bit Y-16) mask (1 = Enable; 0 = Disable).
GPIO[X] Data Output, 31≥X≥16.
Read: Reads the last value written to this bit.
Write: The output level (1 = high, 0 = low) is driven onto GPIO[X]
pin when mask bit is set (GPIO_DOMSK[X] = 1) and signal
direction is output (GPIO_OE[X] = 1); no effect, otherwise.
RW
16’bx
GPIO_DOUT{X},
31≥X≥16,
X = Y +16
Bit(s)
31
30:28
27
26
25
24
23
22
21
20
19
18
17
16
15
14:12
11
10
9
Type
WO
Default
1’b0
Name
GPIO_DOMSK31
Description
GPIO31 Output Mask.
Reserved.
GPIO27 Output Mask.
GPIO26 Output Mask.
GPIO25 Output Mask.
GPIO24 Output Mask.
WO
WO
WO
WO
1’b0
1’b0
1’b0
1’b0
GPIO_DOMSK27
GPIO_DOMSK26
GPIO_DOMSK25
GPIO_DOMSK24
WO
WO
WO
WO
WO
WO
WO
RW
1’b0
1’b0
1’b0
1’b0
1’b0
1’b1
1’b0
-
GPIO_DOMSK22
GPIO_DOMSK21
GPIO_DOMSK20
GPIO_DOMSK19
GPIO_DOMSK18
GPIO_DOMSK17
GPIO_DOMSK16
GPIO_DOUT31
GPIO22 Output Mask.
GPIO21 Output Mask.
GPIO20 Output Mask.
GPIO19 Output Mask.
GPIO18 Output Mask.
GPIO17 Output Mask.
GPIO16 Output Mask.
GPIO31 Data Output.
Reserved.
GPIO27 Data Output.
GPIO26 Data Output.
GPIO25 Data Output.
GPIO24 Data Output.
Reserved.
RW
RW
RW
RW
1’bx
1’bx
1’bx
1’bx
GPIO_DOUT27
GPIO_DOUT26
GPIO_DOUT25
GPIO_DOUT24
8
7
6
5
4
3
2
1
0
RW
RW
RW
RW
RW
RW
RW
1’bx
1’bx
1’bx
1’bx
1’bx
1’bx
1’bx
GPIO_DOUT22
GPIO_DOUT21
GPIO_DOUT20
GPIO_DOUT19
GPIO_DOUT18
GPIO_DOUT17
GPIO_DOUT16
GPIO22 Data Output.
GPIO21 Data Output.
GPIO20 Data Output.
GPIO19 Data Output.
GPIO18 Data Output.
GPIO17 Data Output.
GPIO16 Data Output.
9-8
Conexant Proprietary and Confidential Information
101306C
CONEXANT [ CONEXANT SYSTEMS, INC ]
