DS100KR800 Datasheet, PDF (19/33 Pages) Texas Instruments – Ultra Low Power, 8-Channel Repeater for Data-rates up to 10.3 Gbps

Table 8: SMBUS Slave Mode Register Map
Address Register Name
0x00
Observation,
Reset
0x01
PWDN Channels
0x02
0x05
0x06
Override
RESET Control
Slave Mode CRC
Bits
Slave CRC Control
0x08
Override
Pin Control
0x0E
0x0F
CH0 - CHB0
Reserved
CH0 - CHB0
EQ
Bit (s) Field
7
Reserved
6:3 Address Bit
AD[3:0]
2
EEPROM Read
Done
1
Block Reset
0
Reset
7:0 PWDN CHx
7:1 Reserved
0
Override RESET
7:0 CRC bits
7:5 Reserved
4
Reserved
3
Slave CRC
2:0 Reserved
7
Reserved
6
Override SD_TH
5:2 Reserved
1
Override DEM
0
Reserved
7:0 Reserved
7:0 EQ Control
Type
R/W
R
R
R/W
R/W
R/W
R/W
R/W
Default
0x00
0x00
0x00
0x00
Description
Set bit to 0.
Observation of AD[3:0] bit
[6]: AD3
[5]: AD2
[4]: AD1
[3]: AD0
1: Device completed the read from external
EEPROM.
1: Block bit 0 from resettting the registers; self
clearing.
SMBus Reset
1: Reset registers to default value; self clearing.
Power Down per Channel
[7]: CH7 – CHA_3
[6]: CH6 – CHA_2
[5]: CH5 – CHA_1
[4]: CH4 – CHA_0
[3]: CH3 – CHB_3
[2]: CH2 – CHB_2
[1]: CH1 – CHB_1
[0]: CH0 – CHB_0
00'h = all channels enabled
FF'h = all channels disabled
Note: override RESET pin.
Set bits to 0.
1: Block RESET pin control
0: Allow RESET pin control
CRC bits [7:0]
R/W 0x10
R/W 0x00
R/W 0x00
Set bits to 0.
Set bit to 1.
1: Disables the slave CRC mode
0: Enables the slave CRC mode
Note: In order to change VOD, DEM and EQ of
the channels in slave mode, set bit to 1 to disable
the CRC.
Set bits to 0.
Set bit to 0.
1: Block SD_TH pin control
0: Allow SD_TH pin control
Set bits to 0.
1: Block DEM pin control
0: Allow DEM pin control
Set bit to 0.
Set bits to 0.
R/W 0x2F
IB0 EQ Control - total of 256 levels.
See Table 2: Equalizer Settings.
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