PI2EQX5804CNJE Datasheet, PDF (3/23 Pages) Pericom Semiconductor Corporation – 5.0Gbps 4-Lane PCIe® 2.0 ReDriver™ with Equalization & Emphasis

Pin #
H5
F8
G5
C6
D6
C5
J5
E10
F1
E7
F4
E6, E8
F5, F3
A5
A6
E1, E2, E3
PI2EQX5804C
5.0Gbps 4-Lane PCIe® 2.0 ReDriver™ with
Equalization & Emphasis
Pin Name
DE_B
Type
I
LB#
I
MODE
I
PD#
I
NC
NC
RESET#
I
RX50_A
O
RX50_B
O
RXD_A
I
RXD_B
I
S[0:1]_A
I
S[0:1]_B
I
SCL
I/O
SDA
I/O
SEL[0:2]_A I
Description
De-emphasis enable input for Channel B0, B1, B2 and B3 with internal 100K-
Ohm pull-up resistor. Set high selects output de-emphasis and set low selects
output pre-emphasis.
Input with internal 100K-Ohm pull-up resistor. LB# = High or open for normal
operation. LB# = Low for loopback connection of A_RX to A_TX and B_TX.
Input switch between pin control and I²C control with internal 100k-ohm pull-up
resistor. A LVCMOS high level selects input pin control, and disables I²C opera-
tion. Note, during startup, input status of the control pin (LB#, RESET#, PD#,
RXD_A/B, SEL0-2_A/B, D0-2_A/B, S0-1_A/B, DE_A/B) will be latched to the
initial state of some I²C control pins only once.
Input with internal 100K-Ohm pull-up resistor, PD# =High or open is normal
operation, PD# =Low disable the IC, and set IC to power down mode, both input
and output go Hi-Z.
No Connect
No Connect
RESET# is an active low channel reset input for Channel A0, B0, A1, B1, A2,
B2, A3 and B3 with internal 100K-Ohm pull-up resistor. When low, the receiver
detection cycle is reset, and normal detection cycle is started after the pin goes
high.
Receiver detect output pin for Channel A0. RX50_A=High
indicates that a 50-Ohm termination was sensed at the A0TX+/- outputs.
Receiver detect output pin for Channel B0. RX50_B=High
indicates that a 50-Ohm termination was sensed at the B0TX+/- outputs.
Receiver detect enable input for Channel A0, A1, A2 and A3 with internal 100K-
Ohm pull-up resistor.
Receiver detect enable input for Channel B0, B1, B2 and B3 with internal 100K-
Ohm pull-up resistor.
Selection pins for Channel Ax output level (see Output Swing Configuration
Table) w/ 100K-Ohm internal pull up
Selection pins for Channel Bx output level (see Output Swing Configuration
Table) w/ 100K-Ohm internal pull up
I²C SCL clock input.
I²C SDA data input.
Selection pins for Channel Ax equalization (see Equalizer Configuration Table)
w/ 100K-Ohm internal pull up
09-0001
3
PS8926B
06/08/09