DS125BR820 Datasheet, PDF (18/62 Pages) Texas Instruments – Low-Power 12.5 Gbps 8-Channel Linear Repeater

DS125BR820
SNLS491B – JULY 2014 – REVISED FEBRUARY 2015
www.ti.com
EEPROM Address Byte
Bit 7
Description
Default
Value
0x00
CRC_EN
0x00
0
Description
Reserved
Default
Value
0x01
0x00
0
Description
Default
Value
0x00
0x02
Max EEPROM
Burst size[7]
0
Description
SMBus Register
Default
Value
0x00
PWDN_CH7
0x03 ^0x01[7]
0
Description
SMBus Register
Default
Value
0x00
Reserved
0x04 ^0x02[5]
0
Description
SMBus Register
Default
Value
0x04
Reserved
0x05 ^0x04[4]
0
Description
SMBus Register
Default
Value
0x07
Reserved
0x06 ^0x08[4]
0
Description
SMBus Register
Default
Value
0x00
Reserved
0x07 ^0x0B[3]
0
Description
SMBus Register
Default
Value
0x2F
0x08
Reserved
0x0F[7]
0
18
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Table 6. EEPROM Register Map - Single Device With Default Value
Bit 6
Address Map
Present
Bit 5
EEPROM > 256
Bytes
Bit 4
Reserved
Bit 3
DEVICE
COUNT[3]
Bit 2
DEVICE
COUNT[2]
0
0
0
0
0
Reserved
0
Reserved
0
Reserved
0
Reserved
0
Reserved
0
Max EEPROM
Burst size[6]
0
Max EEPROM
Burst size[5]
0
Max EEPROM
Burst size[4]
0
Max EEPROM
Burst size[3]
0
Max EEPROM
Burst size[2]
0
PWDN_CH6
0x01[6]
0
PWDN_CH5
0x01[5]
0
PWDN_CH4
0x01[4]
0
PWDN_CH3
0x01[3]
0
PWDN_CH2
0x01[2]
0
Reserved
0x02[4]
0
Reserved
0x02[3]
0
Reserved
0x02[2]
0
Ovrd_PWDN
0x02[0]
0
Reserved
0x04[7]
0
Reserved
0x04[3]
0
Reserved
0x04[2]
0
Reserved
0x04[1]
0
Reserved
0x04[0]
0
Reserved
0x06[4]
1
Ovrd_RXDET
0x08[3]
0
Reserved
0x08[2]
0
Reserved
0x08[1]
0
Reserved
0x08[0]
0
Reserved
0x0B[6]
1
Reserved
0x0B[2]
0
Reserved
0x0B[1]
0
Reserved
0x0B[0]
0
Reserved
0x0E[5]
0
Reserved
0x0E[4]
0
Reserved
0x0F[6]
0
Reserved
0x0F[5]
1
Reserved
0x0F[4]
0
Reserved
0x0F[3]
1
Reserved
0x0F[2]
1
Bit 1
DEVICE
COUNT[1]
0
Bit 0
DEVICE
COUNT[0]
0
Reserved
0
Reserved
0
Max EEPROM
Burst size[1]
0
Max EEPROM
Burst size[0]
0
PWDN_CH1
0x01[1]
0
PWDN_CH0
0x01[0]
0
Reserved
0x04[6]
0
Reserved
0x04[5]
0
Ovrd_SD_TH
0x08[6]
0
Reserved
0x08[5]
0
Reserved
0x0B[5]
1
Reserved
0x0B[4]
1
CH0_RXDET_1
0x0E[3]
0
CH0_RXDET_0
0x0E[2]
0
CH0_EQ_1
0x0F[1]
1
CH0_EQ_0
0x0F[0]
1
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