Texas Instruments FPD Link III - DS90UB903Q & DS90UB904Q EVK SERDESUB-21USB/NOPB SERDESUB-21USB/NOPB Data Sheet
Product codes
SERDESUB-21USB/NOPB
14
SERDESUB-21USB User’s Guide
SNLU101 – April 2012
Configuration Settings for the Deserializer Demo Board
VDDIO: 1.8V or 3.3V LVCMOS INPUT/OUTPUT SELECTION
Reference
Reference
Description
+1.8V VDDIO
+3.3V VDDIO
JP12
JP12
VDDIO LVCMOS
I/O level configuration.
I/O level configuration.
VDDIO = 1.8V
1.8V
LVCMOS
VDDIO = 3.3V
(Default)
apply external
3.3V LVCMOS
3.3V LVCMOS
S1: Deserializer Input Features Selection
Reference
Description
Input = L
Input = H
S1
PDB
PowerDown Bar Power
Down
(Disabled)
(Disabled)
Operational
(Default)
BISTEN
BIST Enable Pin
Normal
operating
mode.
BIST is
disabled.
operating
mode.
BIST is
disabled.
(Default)
BIST Mode is
enabled.
enabled.
M_S
(MODE)
(MODE)
I2C Master / Slave
select
select
Master
(Default)
Slave
RES 0
(* IMPORTANT
See user note
below)
See user note
below)
Reserved
MUST be
tied low for
normal
operation
tied low for
normal
operation
(Default)
*Note: In user layout RES0
MUST
be tied low for proper operation.
1.8V
1.8V
3.3V