PM7375-SC datasheet(39/430 Pages) PMC

tên linh kiện	PM7375-SC

Giải thích chi tiết về linh kiện	LOCAL ATM SAR & PHYSICAL LAYER

PDF	430 Pages

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nhà sản xuất	PMC [PMC-Sierra, Inc]

Trang chủ	http://www.pmc-sierra.com

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39 / 430 page

PM7375 LASAR-155

DATA SHEET

PMC-931127

ISSUE 6

LOCAL ATM SAR & PHYSICAL LAYER

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

8.3

PCI Host Interface Signals (52)

Name

Type

No.

Feature

PCICLK

Input

198

The PCI clock (PCICLK) provides timing for PCI bus

accesses. PCICLK should be nominally a 50% duty

cycle 0 to 33 MHz clock.

PCICLKO

Output

196

The PCI clock output (PCICLKO) is a buffered version

of the PCI clock input, PCICLK. PCICLKO can be used

to drive the SYSCLK input.

ROMP

Input

132

The ROMP input can be used to indicate whether an

Expansion ROM is present or not. If ROMP is logic

one, an expansion ROM is assumed to be present on

the LASAR-155 local bus and the Expansion ROM

Base Address register operates normally. If ROMP is

logic zero, the XRBS bits in the Expansion ROM Base

Address register is zeroed out indicating there is no

expansion ROM. ROMP must be used to allow

Interoperability with some BIOs implementations.

ROMP has an integral pull up resistor.

PM7375-SC bảng dữ liệu(PDF) 39 Page - PMC-Sierra, Inc