Datasheet

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.

VDDIO = 1.8V

1.8V

LVCMOS

inputs

VDDIO = 3.3V

(Default)

apply external

3.3V

LVCMOS

inputs

S1: Serializer Input Features Selection

Reference Description Input = L Input = H S1

MODE

(M_S)

C Master / Slave

select

Master

Slave

(Default)

PDB PowerDown Bar Powers

Down

Operational

(Default)

RES 0

(* IMPORTANT

See user note

below)

Reserved MUST be

tied low for

normal

operation

(Default)

*Note:

In user layout RES0 MUST be tied low for proper operation.

1.8V

JP12

NOT USED

3.3V