DS90C3202VSSLASHNOPB datasheet(21/26 Pages) TI1

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DS90C3202

www.ti.com

SNLS191D – APRIL 2005 – REVISED APRIL 2013

Address

R/W

RESET

Bit #

Description

Default Value

26d/1ah

R/W

None

[7]

Reserved

0000_0000

[6:4]

LVDS input skew control for RXE channel B,

000 (default) applies to no delay added, ONE buffer delay

per step adjustment towards Thold improvements

[3]

Reserved

[2:0]

LVDS input skew control for RXE channel C,

000 (default) applies to no delay added, ONE buffer delay

per step adjustment towards Thold improvements

27d/1bh

R/W

None

[7]

Reserved

0000_0000

[6:4]

LVDS input skew control for RXE channel D,

000 (default) applies to no delay added, ONE buffer delay

per step adjustment

[3]

Reserved

[2:0]

LVDS input skew control for RXE channel E,

000 (default) applies to no delay added, ONE buffer delay

per step adjustment towards Thold improvements

28d/1ch

R/W

None

[7:3]

Reserved

0000_0000

[2]

LVTTL output transition time control for CLK

0: Tr/Tf = 1.0ns (default)

1: Tr/Tf = 1.5ns

[1]

LVTTL output transition time control for RXE

0: Tr/Tf = 1.5ns (default)

1: Tr/Tf = 2.5ns

[0]

LVTTL output transition time control for RXO

0: Tr/Tf = 1.5ns (default)

1: Tr/Tf = 2.5ns

29d/1dh

R/W

None

[7:3]

Reserved

0000_0000

[2:1]

LVTTL output setup and hold time control

00: balanced setup and hold time (default)

01: setup time is increased from default position by 1UI &

hold time is reduced from default position by 1UI

10: setup time is decreased from default position by 1UI &

hold time is reduced from default position by 1UI

11: setup time is increased from default position by 2UI &

hold time is increased from default position by 2UI

[0]

LVTTL output PTO control

1: PTO disabled, all outputs setup time are only controlled

by contents of [2:1]

0: PTO enabled (default)

Group1: CLK to latch Data is re-assigned earlier by 0.5UI

respect to the normal centered position if only PTO option

enabled; but PTO option and (Tsetup or Thold) adjustment

can co-exist

Group2: CLK to latch Data stays as the normal centered

position if only PTO option enabled; but PTO option and

(Tsetup or Thold) adjustment can co-exist

30d/1eh

R/W

None

[7:5]

Reserved

0000_0000

[4]

I/O disable control for RXE channel A,