DS90UH948-Q1 Datasheet, PDF (50/91 Pages) Texas Instruments – FPD-Link III to OpenLDI Deserializer

DS90UH948-Q1
SNLS473A – OCTOBER 2014 – REVISED JANUARY 2016
www.ti.com
8.7 Register Maps
Table 11. Serial Control Bus Registers
ADD
(hex)
0x00
Register
Name
I2C Device
ID
Bit(s) Function
7:1 DEVICE ID
0
DES ID
0x01 Reset
7:3 RESERVED
2
RESERVED
1
DIGITAL
RESET0
Type
RW
RW
RW
R
RW
0
DIGITAL
RW
RESET1
0x02 General
7
OUTPUT
RW
Configuration
ENABLE
0
7
OUTPUT
RW
ENABLE
6
OUTPUT
RW
ENABLE
OVERRIDE
5
OSC CLOCK
RW
OUTPUT
ENABLE
(AUTO_CLOCK_
EN)
4
OUTPUT SLEEP RW
STATE SELECT
3:0 RESERVED
RW
Default
Description
Value (hex)
Strap
7-bit address of Deserializer;
Defaults to the address configured by the IDx strap pin. See
Table 10.
0
0: Device ID is from IDx strap
1: Register I2C Device ID overrides IDx strap
0
Reserved
1
Reserved
0
Digital Reset. Resets the entire digital block including registers.
This bit is self-clearing.
1: Reset
0: Normal operation.
Registers which are loaded by pin strap will be restored to their
original strap value when this bit is set. These registers show
‘Strap’ as their default value in this table.
0
Digital Reset. Resets the entire digital block except registers.
This bit is self-clearing.
1: Reset
0: Normal operation
0
Output Enable Override Value (in conjunction with Output Sleep
State Select) If the Override control is not set, the Output
Enable will be set to 1.
A Digital reset 0x01[0] should be asserted after toggling Output
Enable bit Low to High
1
Output Enable Override Value (in conjunction with Output Sleep
State Select) If the Override control is not set, the Output
Enable will be set to 1.
A Digital reset 0x01[0] should be asserted after toggling Output
Enable bit LOW to HIGH
0
Overrides Output Enable and Output Sleep State default
0: Disable override
1: Enable override
0
OSC clock output enable
If loss of lock OSC clock is output onto PCLK. The frequency is
selected in register 0x24.
1: Enable
0: Disable
0
OSS Select Override value to control output state when LOCK
is low (used in conjunction with Output Enable)
If the Override control is not set, the Output Sleep State Select
will be set to 1.
0
Reserved
50
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