Datasheet

DS32EL0124, DS32ELX0124
SNLS284K –MAY 2008–REVISED APRIL 2013 www.ti.com
Register Map
The register information for the deserializer is shown in the table below. Some registers have been omitted or
marked as reserved; these are for internal testing and should not be written to. Some register bits require an
override bit to be set before they can be written to.
Addr (Hex) Name Bits Field R/W Default Description
00 Device ID 7:1 SMBus Address R/W 58'h Some systems will use all 8 bits as the device
ID. This will shift the value from 58’h to B0’h
0 Reserved 0
01 Reset 7:1 Reserved 0
0 Software Reset R/W 0 Reset the device. Does not affect device ID.
02 GPIO0 Config 7:4 GPIO0 Mode R/W 0 0000: GP Out
0001: Signal Detect RxIN0
0010: BIST Status
All Others: Reserved
3:2 GPIO0 R Enable R/W 01'b 00: Pullup/Pulldown disabled
01: Pulldown Enabled
10: Pullup Enabled
11: Reserved
1 Input Enable R/W 0 0: Input buffer disabled
1: Input buffer enabled
0 Output Enable R/W 1'b 0: Output Tri-State™
1: Output enabled
03 GPIO1 Config 7:4 GPIO1 Mode R/W 0 0000: Power On Reset
0001: GP Out
0010: Signal Detect RxIN1
0011:CDR Lock
All Others: Reserved
3:2 GPIO1 R Enable R/W 01'b 00: Pullup/Pulldown disabled
01: Pulldown Enabled
10: Pullup Enabled
11: Reserved
1 Input Enable R/W 0 0: Input buffer disabled
1: Input buffer enabled
0 Output Enable R/W 1 0: Output Tri-State™
1: Output enabled
04 GPIO2 Config 7:4 GPIO2 Mode R/W 0 0000: GP Out
0001: Always on Clock Out
0010: LVDS Tx CLK
0011: CDR CLK
All Others: Reserved
3:2 GPIO2 R Enable R/W 01'b 00: Pullup/Pulldown disabled
01: Pulldown Enabled
10: Pullup Enabled
11: Reserved
1 Input Enable R/W 0 0: Input buffer disabled
1: Input buffer enabled
0 Output Enable R/W 1'b 0: Output Tri-State™
1: Output enabled
05 GP In 7:3 Reserved
2 GP In 2 R 0 Input value on GPIO2
1 GP In 1 R 0 Input value on GPIO1
0 GP In 0 R 0 Input value on GPIO0
06 GP Out 7:3 Reserved 0
2 GP Out 2 R/W 0 Output value on GPIO2
1 GP Out 1 R/W 0 Output value on GPIO1
0 GP Out 0 R/W 0 Output value on GPIO0
07 — 1F Reserved
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Product Folder Links: DS32EL0124 DS32ELX0124