DS32EL0124SQ NSC [National Semiconductor], DS32EL0124SQ Datasheet - Page 21

• Manufacturer Part Number: DS32EL0124SQ
• Description: 125 MHz- 312.5 MHz FPGA-Link Deserializer with DDR LVDS Parallel Interface
• Manufacturer: NSC [National Semiconductor]

Register Map
The register information for the deserializer is shown in the
table below. Some registers have been omitted or marked as
Addr (Hex)
00
01
02
03
04
05
Device ID
Reset
GPIO0 Config
GPIO1 Config
GPIO2 Config
GP In
Name
Bits
7:1
0
7:1
0
7:4
3:2
1
0
7:4
3:2
1
0
7:4
3:2
1
0
7:3
2
1
0
SMBus Address
Reserved
Reserved
Software Reset
GPIO0 Mode
GPIO0 R Enable
Input Enable
Output Enable
GPIO1 Mode
GPIO1 R Enable
Input Enable
Output Enable
GPIO2 Mode
GPIO2 R Enable
Input Enable
Output Enable
Reserved
GP In 2
GP In 1
GP In 0
Field
21
reserved; these are for internal testing and should not be writ-
ten to. Some register bits require an override bit to be set
before they can be written to.
R/W Default
R/W 58'h
R/W 0
R/W 0
R/W 01'b
R/W 0
R/W 1'b
R/W 0
R/W 01'b
R/W 0
R/W 1
R/W 0
R/W 01'b
R/W 0
R/W 1'b
R
R
R
0
0
0
0
0
Some systems will use all 8 bits as the
device ID. This will shift the value
from 58’h to B0’h
Reset the device. Does not affect
device ID.
0000: GP Out
0001: Signal Detect RxIN0
0010: BIST Status
All Others: Reserved
00: Pullup/Pulldown disabled
01: Pulldown Enabled
10: Pullup Enabled
11: Reserved
0: Input buffer disabled
1: Input buffer enabled
0: Output Tri-State™
1: Output enabled
0000: Power On Reset
0001: GP Out
0010: Signal Detect RxIN1
0011:CDR Lock
All Others: Reserved
00: Pullup/Pulldown disabled
01: Pulldown Enabled
10: Pullup Enabled
11: Reserved
0: Input buffer disabled
1: Input buffer enabled
0: Output Tri-State™
1: Output enabled
0000: GP Out
0001: Always on Clock Out
0010: LVDS Tx CLK
0011: CDR CLK
All Others: Reserved
00: Pullup/Pulldown disabled
01: Pulldown Enabled
10: Pullup Enabled
11: Reserved
0: Input buffer disabled
1: Input buffer enabled
0: Output Tri-State™
1: Output enabled
Input value on GPIO2
Input value on GPIO1
Input value on GPIO0
Description
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