cx82100 Conexant Systems, Inc., cx82100 Datasheet - Page 179

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

9.3.10
101306C
23 ≥ Y ≥ 16,
Y = Bit #
Y = Bit #
7 ≥ Y ≥ 0,
23:16;
Bit(s)
31:24
Bit(s)
31:24
20:17
15:8
15:8
7:0;
4:1
23
22
21
16
7
6
5
0
Type
Type
RW
RW
RW
RW
RW
RO
RO
RO
RO
RO
GPIO Data Output Register 3 for GPIO[39:37; 32] (GPIO_DATA_OUT3:
0x003500D4)
Default
Default
Conexant Proprietary and Confidential Information
8’b0
8’bx
1’b0
1’b0
1’b1
1’b1
1’b1
1’b1
The GPIO Data Output Register 3 contains read/write data output bits and corresponding
write-only output mask bits for GPIO[39:32].
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.
Note:
-
-
CX82100 Home Network Processor Data Sheet
Voltage levels for GPIO[39:37; 32] pins assigned to special purpose functions
by bits in the GPIO_OPT register are reflected in the GPIO_DATA_IN3
register, however, the GPIO_DATA_OUT3 register bits are not applicable.
GPIO_DOMSK{X},
39 ≥ X ≥ 32,
X = Y+16
GPIO_DOUT{X},
39 ≥ X ≥ 32,
X = Y+32
GPIO_DOMSK39
GPIO_DOMSK38
GPIO_DOMSK37
GPIO_DOMSK32
GPIO_DOUT39
GPIO_DOUT38
GPIO_DOUT37
GPIO_DOUT32
Name
Name
Reserved.
GPIO[X] Output Mask, 39≥ ≥ ≥ ≥ X≥ ≥ ≥ ≥ 32.
Read: Reads a 0.
Write: GPIO_DOUT[X] (bit Y-=16) mask (1 = Enable; 0 = Disable).
Reserved.
GPIO[X] Data Output, 39≥ ≥ ≥ ≥ X≥ ≥ ≥ ≥ 32.
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.
Reserved.
GPIO39 Output Mask.
GPIO38 Output Mask.
GPIO37 Output Mask.
Reserved.
GPIO32 Output Mask.
Reserved.
GPIO39 Data Output.
GPIO38 Data Output.
GPIO37 Data Output.
Reserved.
GPIO32 Data Output.
Description
Description
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