Texas Instruments FPD Link III - DS90UB903Q & DS90UB904Q EVK SERDESUB-21USB/NOPB SERDESUB-21USB/NOPB Hoja De Datos
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SERDESUB-21USB/NOPB
8
SERDESUB-21USB User’s Guide
SNLU101 – April 2012
Configuration Settings for the Serializer Demo Board
VDDIO: 1.8V or 3.3V LVCMOS INPUT/OUTPUT SELECTION
Reference
Description
+1.8V VDDIO
+3.3V VDDIO
JP11
JP11
VDDIO LVCMOS
I/O level configuration.
I/O level configuration.
VDDIO = 1.8V
1.8V
LVCMOS
inputs
LVCMOS
inputs
VDDIO = 3.3V
(Default)
apply external
3.3V
LVCMOS
inputs
3.3V
LVCMOS
inputs
S1: Serializer Input Features Selection
Reference
Description
Input = L
Input = H
S1
MODE
(M_S)
(M_S)
I2C Master / Slave
select
select
Master
Slave
(Default)
PDB
PowerDown Bar Powers
Down
Operational
(Default)
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
JP12
NOT USED
NOT USED
3.3V