AD8196_15 Datasheet, PDF (16/24 Pages) Analog Devices – 2:1 HDMI/DVI Switch with Equalization

AD8196
CONFIGURATION REGISTERS
The serial interface configuration registers can be read and written using the I²C serial interface, Pin I2C_SDA, and Pin I2C_SCL.
The LSB of the AD8196 I²C part address is set by tying Pin I2C_ADDR to 3.3 V (I2C_ADDR = 1) or 0 V (I2C_ADDR = 0).
Table 5. Register Map
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
High Speed
Device
Modes
High speed
switch enable
HS_EN
High speed
source select
HS_CH
Auxiliary
Device
Modes
Auxiliary
switch enable
Auxiliary
switch
source select
AUX_EN
AUX_CH
Receiver
Settings
High speed
input
termination
select
RX_TO
Input
Input termination pulse-on-source-switch select (disconnect termination for a short period of time)
Termination
Pulse
RX_PT[7]
RX_PT[6]
RX_PT[5] RX_PT[4] RX_PT[3] RX_PT[2] RX_PT[1] RX_PT[0]
Receive
Equalizer
RX_EQ[7] RX_EQ[6]
Input equalization level select
RX_EQ[5] RX_EQ[4] RX_EQ[3] RX_EQ[2] RX_EQ[1]
RX_EQ[0]
Transmitter
Settings
High speed output
pre-emphasis level
select
High speed
output
termination
select
High speed
output
current level
select
TX_PE[1] TX_PE[0] TX_PTO
TX_OCL
Addr.
0x00
0x01
0x10
0x11
0x13
0x20
Default
0x40
0x40
0x01
0x00
0x00
0x03
HIGH SPEED DEVICE MODES REGISTER
HS_EN: High Speed (TMDS) Switch Enable Bit
Table 6. HS_EN Description
HS_EN Description
0
High speed channels off, low power/standby mode
1
High speed channels on
HS_CH: High Speed (TMDS) Source Select Bit
Table 7. HS_CH Mapping
HS_CH O[3:0] Description
0
A[3:0] High speed Source A switched to output
1
B[3:0] High speed Source B switched to output
AUXILIARY DEVICE MODES REGISTER
AUX_EN: Auxiliary (Low Speed) Switch Enable Bit
Table 8. AUX_EN Description
AUX_EN Description
0
Auxiliary switch off, no low speed input/output to
low speed common input/output connection
1
Auxiliary switch on
AUX_CH: Auxiliary (Low Speed) Switch Source Select Bit
Table 9. AUX_CH Mapping
AUX_CH AUX_COM[3:0]
0
AUX_A[3:0]
1
AUX_B[3:0]
Description
Auxiliary Source A switched to
output
Auxiliary Source B switched to
output
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