SI3012-KS Silicon Laboratories Inc, SI3012-KS Datasheet - Page 43

• Manufacturer Part Number: SI3012-KS
• Description: IC ISOMODEM SYSTEM-SIDE 16SOIC
• Manufacturer: Silicon Laboratories Inc

Specifications of SI3012-KS

• Data Format: V.90
• Interface: Serial
• Voltage - Supply: 3.3 V ~ 5 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Baud Rates: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

Register 48h Line 2 DAC/ADC Level
Reset setting for Line 1 device = 0x0000
Reset setting for Line 2 device = 0x8080
This read/write register controls the modem AFE DAC and ADC levels. The default value after cold register reset
for this register (0x8080) corresponds to 0 db DAC attenuation with mute on and 0 db ADC gain with mute on.
Register 4Ch GPIO Pin Configuration
Reset setting for Line 1 device = 0x003F
Reset setting for Line 2 device = 0xFC00
The GPIO Pin Configuration register is read/write for configuring Slot 12 I/O. These pins are digital commands
(virtual pins). This register specifies whether a GPIO pin is configured for input (1) or output (0). The digital
controller sends the desired GPIO pin value over output slot 12 in the outgoing stream of the AC-link before
configuring any of these bits for output.
GC15 GC14 GC13 GC12 GC11 GC10
Mute
14:12
D15
D15
11:9
Bit
6:4
3:1
15
8
7
0
D14
D14
Reserved Read returns zero.
Reserved Read returns zero.
Reserved Read returns zero.
Reserved Read returns zero.
DAC[3:1]
ADC[3:1]
Name
Mute
Mute
D13
D13
Transmit Mute.
0 = mute off.
1 = mute on.
Analog Transmit Attenuation.
000 = 0 db attenuation.
001 = 3 db attenuation.
010 = 6 db attenuation.
011 = 9 db attenuation.
1xx = 12 db attenuation.
Receive Mute.
0 = mute off.
1 = mute on.
Analog Receive Gain.
000 = 0 db gain.
001 = 3 db gain.
010 = 6 db gain.
011 = 9 db gain.
1xx = 12 db gain.
D12
D12
DAC3 DAC2 DAC1
D11
D11
D10
D10
Function
D9
D9
D8
D8
Rev. 2.01
Mute
D7
D7
D6
D6
GC5
D5
D5
GC4
D4
D4
ADC3 ADC2 ADC1
GC3
D3
D3
GC2
D2
D2
Si3038
GC1
D1
D1
GC0
D0
D0
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