cx82100 Conexant Systems, Inc., cx82100 Datasheet - Page 177

• Manufacturer Part Number: cx82100
• Description: Home Network Processor Hnp
• Manufacturer: Conexant Systems, Inc.

9.3.8
101306C
31 ≥ Y ≥ 16,
Y = Bit #
Y = Bit #
15 ≥ Y ≥ 0,
31:16;
Bit(s)
Bit(s)
29:25
20:16
15:0;
13:9
4:0
31
30
24
23
22
21
15
14
8
7
6
5
Type
Type
WO
WO
WO
WO
WO
WO
WO
RW
RW
RW
RW
RW
RW
RW
GPIO Data Output Register 1 for GPIO[15:14; 8:5] (GPIO_DATA_OUT1:
0x003500CC)
Default
Default
Conexant Proprietary and Confidential Information
16’b0
16’bx
1’b0
1’b0
1’b1
1’b0
1’b0
1’b0
1’bx
1’bx
1’bx
1’bx
1’bx
1’bx
The GPIO Data Output Register 1 contains read/write data output bits and corresponding
write-only output mask bits for GPIO[15:14; 8:5].
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.
CX82100 Home Network Processor Data Sheet
GPIO_DOMSK{X},
15 ≥ X ≥ 0,
X = Y-16
GPIO_DOUT{X},
15 ≥ X ≥ 0,
X = Y
GPIO_DOMSK15
GPIO_DOMSK14
GPIO_DOMSK8
GPIO_DOMSK7
GPIO_DOMSK6
GPIO_DOMSK5
GPIO_DOUT15
GPIO_DOUT14
GPIO_DOUT8
GPIO_DOUT7
GPIO_DOUT6
GPIO_DOUT5
Name
Name
GPIO[X] Output Mask, 15≥ ≥ ≥ ≥ X≥ ≥ ≥ ≥ 0.
Read: Reads a 0.
Write: GPIO_DOUT[X] (bit Y-16) mask (1 = Enable; 0 = Disable).
GPIO[X] Data Output, 15≥ ≥ ≥ ≥ X≥ ≥ ≥ ≥ 0.
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.
GPIO15 Output Mask.
GPIO14 Output Mask.
Reserved.
GPIO8 Output Mask.
GPIO7 Output Mask.
GPIO6 Output Mask.
GPIO5 Output Mask.
Reserved.
GPIO15 Data Output.
GPIO14 Data Output.
Reserved.
GPIO8 Data Output.
GPIO7 Data Output.
GPIO6 Data Output.
GPIO5 Data Output.
Reserved.
Description
Description
9-7