STLS2F02 datasheet(9/49 Pages) STMICROELECTRONICS

部件名	STLS2F02

功能描述	Loongson 2F high performance 64-bit superscalar MIPS® microprocessor

PDF	49 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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STLS2F02

Interface description

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2.2

PCI bus interface signal components

The STLS2F02 PCI bus signals include:

●

32-bit address data bus

●

4-bit command data ID bus

●

14-bit bus arbitrator

●

7-bit interface control

●

2-bit error report signals

The STLS2F02 PCI bus signals are shown in Table 2.

Table 2.

PCI bus signals

Name

Input/output

Description

PCI_AD[63:0]

I/O

PCI address/data bus

PCI_CBEn[7:0]

I/O

PCI command/byte

PCI_PAR

I/O

Address/data parity check signal

PCI_REQn[6:1]

External request

PCI_REQn[0]

I/O

External request input/request output to external arbiter

PCI_GNT[6:1]

PCI bus grant to external device

PCI_GNT[0]

I/O

PCI bus grant to external device / grant input from

external arbiter

PCI_FRAMEn

I/O

PCI bus cycle frame

PCI_IRDYn

I/O

PCI initiator ready

PCI_TRDYn

I/O

PCI target ready

PCI_STOPn

I/O

PCI stop

PCI_DEVSELn

I/O

PCI device select

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