89H32H8G2ZCBL datasheet(12/41 Pages) RENESAS

Part #	89H32H8G2ZCBL

Description	32-Lane 8-Port PCIe® Gen2 System Interconnect Switch

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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November 28, 2011

IDT 89HPES32H8G2 Data Sheet

PCI Express Interface

(cont.)

GCLKN[1:0]

I

HCSL

Diff. Clock

Input

Refer to Table 9

GCLKP[1:0]

I

P[2:0]CLKN

I

P[2:0]CLKP

I

SMBus

MSMBCLK

I/O

LVTTL

STI3

pull-up on board

MSMBDAT

I/O

STI

pull-up on board

SSMBADDR[2,1]

I

Input

pull-up

SSMBCLK

I/O

STI

pull-up on board

SSMBDAT

I/O

STI

pull-up on board

General Purpose I/O

GPIO[8:0]

I/O

LVTTL

STI,

High Drive

pull-up

System Pins

CLKMODE[1:0]

I

LVTTL

Input

pull-up

CLKMODE[2]

I

pull-down

GCLKFSEL

I

pull-down

P01MERGEN

I

pull-down

P23MERGEN

I

pull-down

P45MERGEN

I

pull-down

P67MERGEN

I

pull-down

PERSTN

I

STI

RSTHALT

I

Input

pull-down

SWMODE[3:0]

I

pull-down

EJTAG / JTAG

JTAG_TCK

I

LVTTL

STI

pull-up

JTAG_TDI

I

STI

pull-up

JTAG_TDO

O

JTAG_TMS

I

STI

pull-up

JTAG_TRST_N

I

STI

pull-up

SerDes Reference

Resistors

REFRES0

I/O

Analog

REFRES1

I/O

REFRES2

I/O

REFRES3

I/O

REFRES4

I/O

REFRES5

I/O

REFRES6

I/O

REFRES7

I/O

REFRESPLL

I/O

1. Internal resistor values under typical operating conditions are 92K Ω for pull-up and 91K Ω for pull-down.

2. All receiver pins set the DC common mode voltage to ground. All transmitters must be AC coupled to the media.

3. Schmitt Trigger Input (STI).

Function

Pin Name

Type

Buffer

I/O

Type

Internal

Resistor1

Notes

Table 8 Pin Characteristics (Part 2 of 2)

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