DS31256+ datasheet(15/183 Pages) MAXIM

15 / 183 page

DS31256 256-Channel, High-Throughput HDLC Controller

15 of 183

NAME

TYPE

FUNCTION

PAD27

I/O

PCI Multiplexed Address and Data Bit 27

PAD28

I/O

PCI Multiplexed Address and Data Bit 28

PAD29

I/O

PCI Multiplexed Address and Data Bit 29

PAD30

I/O

PCI Multiplexed Address and Data Bit 30

PAD31

I/O

PCI Multiplexed Address and Data Bit 31

Y16

PCBE0

I/O

PCI Bus Command/Byte Enable Bit 0

V12

PCBE1

I/O

PCI Bus Command/Byte Enable Bit 1

PCBE2

I/O

PCI Bus Command/Byte Enable Bit 2

PCBE3

I/O

PCI Bus Command/Byte Enable Bit 3

PCLK

PCI and System Clock. A 25MHz to 33MHz clock is applied here.

Y11

PDEVSEL

I/O

PCI Device Select

W10

PFRAME

I/O

PCI Cycle Frame

PGNT

PCI Bus Grant

PIDSEL

PCI Initialization Device Select

W18

PINT

PCI Interrupt

V10

PIRDY

I/O

PCI Initiator Ready

W12

PPAR

I/O

PCI Bus Parity

V11

PPERR

I/O

PCI Parity Error

PREQ

PCI Bus Request

PRST

PCI Reset

Y12

PSERR

PCI System Error

W11

PSTOP

I/O

PCI Stop

Y10

PTRDY

I/O

PCI Target Ready

V18

PXAS

PCI Extension Signal: Address Strobe

Y20

PXBLAST

PCI Extension Signal: Burst Last

W19

PXDS

PCI Extension Signal: Data Strobe

RC0

Receive Serial Clock for Port 0

RC1

Receive Serial Clock for Port 1

RC2

Receive Serial Clock for Port 2

RC3

Receive Serial Clock for Port 3

RC4

Receive Serial Clock for Port 4

RC5

Receive Serial Clock for Port 5

RC6

Receive Serial Clock for Port 6

RC7

Receive Serial Clock for Port 7

B17

RC8

Receive Serial Clock for Port 8

B16

RC9

Receive Serial Clock for Port 9

C14

RC10

Receive Serial Clock for Port 10

D12

RC11

Receive Serial Clock for Port 11

A10

RC12

Receive Serial Clock for Port 12

RC13

Receive Serial Clock for Port 13

RC14

Receive Serial Clock for Port 14

RC15

Receive Serial Clock for Port 15

RD0

Receive Serial Data for Port 0

RD1

Receive Serial Data for Port 1

RD2

Receive Serial Data for Port 2

RD3

Receive Serial Data for Port 3

RD4

Receive Serial Data for Port 4

RD5

Receive Serial Data for Port 5

RD6

Receive Serial Data for Port 6

RD7

Receive Serial Data for Port 7

D16

RD8

Receive Serial Data for Port 8

C15

RD9

Receive Serial Data for Port 9

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