ds3104-se Maxim Integrated Products, Inc., ds3104-se Datasheet - Page 105
ds3104-se
Manufacturer Part Number
ds3104-se
Description
Line Card Timing Ic With Synchronous Ethernet Support
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS3104-SE.pdf
(135 pages)
- Current page: 105 of 135
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Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 7: GPIO4 Direction (GPIO4D). This bit configures the data direction for the GPIO4 pin. When GPIO4 is an
input its current state can be read from GPSR:GPIO4. When GPIO4 is an output, its value is controlled by the
GPIO4O configuration bit.
Bit 6: GPIO3 Direction (GPIO3D). This bit configures the data direction for the GPIO3 pin. When GPIO3 is an
input its current state can be read from GPSR:GPIO3. When GPIO3 is an output, its value is controlled by the
GPIO3O configuration bit.
Bit 5: GPIO2 Direction (GPIO2D). This bit configures the data direction for the GPIO2 pin. When GPIO2 is an
input its current state can be read from GPSR:GPIO2. When GPIO2 is an output, its value is controlled by the
GPIO2O configuration bit.
Bit 4: GPIO1 Direction (GPIO1D). This bit configures the data direction for the GPIO1 pin. When GPIO1 is an
input its current state can be read from GPSR:GPIO1. When GPI13 is an output, its value is controlled by the
GPIO1O configuration bit.
Bit 3: GPIO4 Output Value (GPIO4O). When GPIO4 is configured as an output (GPIO4D = 1) then this bit
specifies the output value.
Bit 2: GPIO3 Output Value (GPIO3O). When GPIO3 is configured as an output (GPIO3D = 1) then this bit
specifies the output value.
Bit 1: GPIO2 Output Value (GPIO2O). When GPIO2 is configured as an output (GPIO2D = 1) then this bit
specifies the output value.
Bit 0: GPIO1 Output Value (GPIO1O). When GPIO1 is configured as an output (GPIO1D = 1) then this bit
specifies the output value.
________________________________________________________________________________________ DS3104-SE
0 = Input
1 = Output
0 = Input
1 = Output
0 = Input
1 = Output
0 = Input
1 = Output
0 = Low
1 = High
0 = Low
1 = High
0 = Low
1 = High
0 = Low
1 = High
GPIO4D
Bit 7
0
GPIO3D
Bit 6
0
GPCR
GPIO Configuration Register
6Eh
GPIO2D
Bit 5
0
GPIO1D
Bit 4
0
GPIO4O
Bit 3
0
GPIO3O
Bit 2
0
GPIO2O
Bit 1
0
GPIO1O
Bit 0
0
105
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