Rainbow Electronics DS31256 User Manual

Page 14

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DS31256

14 of 181

PIN NAME

TYPE

FUNCTION

T20

LD4

I/O

Local Bus Data Bit 4

R18

LD5

I/O

Local Bus Data Bit 5

P17

LD6

I/O

Local Bus Data Bit 6

R19

LD7

I/O

Local Bus Data Bit 7

R20

LD8

I/O

Local Bus Data Bit 8

P18

LD9

I/O

Local Bus Data Bit 9

P19

LD10

I/O

Local Bus Data Bit 10

P20

LD11

I/O

Local Bus Data Bit 11

N18

LD12

I/O

Local Bus Data Bit 12

N19

LD13

I/O

Local Bus Data Bit 13

N20

LD14

I/O

Local Bus Data Bit 14

M17

LD15

I/O

Local Bus Data Bit 15, MSB

L18

LHLDA(LBG)

I

Local Bus Hold Acknowledge (Local Bus Grant)

L19

LHOLD(LBR)

O

Local Bus Hold (Local Bus Request)

M18

LIM

I

Local Bus Intel/Motorola Bus Select

K20

LINT

I/O

Local Bus Interrupt

M19

LMS

I

Local Bus Mode Select

H18

LRD (LDS)

I/O

Local Bus Read Enable (Local Bus Data Strobe)

K18

LRDY

I

Local Bus PCI Bridge Ready

H19

LWR (LR/W)

I/O

Local Bus Write Enable (Local Bus Read/Write Select)

A2, A8, A11, A19,

B2, B18, J18, J19,

K1, K2, K3, L1–L3,

M20, U14, W2, W9,

Y1, Y19

N.C.

—

No Connect. Do not connect any signal to this pin.

V17

PAD0

I/O

PCI Multiplexed Address and Data Bit 0

U16

PAD1

I/O

PCI Multiplexed Address and Data Bit 1

Y18

PAD2

I/O

PCI Multiplexed Address and Data Bit 2

W17

PAD3

I/O

PCI Multiplexed Address and Data Bit 3

V16

PAD4

I/O

PCI Multiplexed Address and Data Bit 4

Y17

PAD5

I/O

PCI Multiplexed Address and Data Bit 5

W16

PAD6

I/O

PCI Multiplexed Address and Data Bit 6

V15

PAD7

I/O

PCI Multiplexed Address and Data Bit 7

W15

PAD8

I/O

PCI Multiplexed Address and Data Bit 8

V14

PAD9

I/O

PCI Multiplexed Address and Data Bit 9

Y15

PAD10

I/O

PCI Multiplexed Address and Data Bit 10

W14

PAD11

I/O

PCI Multiplexed Address and Data Bit 11

Y14

PAD12

I/O

PCI Multiplexed Address and Data Bit 12

V13

PAD13

I/O

PCI Multiplexed Address and Data Bit 13

W13

PAD14

I/O

PCI Multiplexed Address and Data Bit 14

Y13

PAD15

I/O

PCI Multiplexed Address and Data Bit 15

V9

PAD16

I/O

PCI Multiplexed Address and Data Bit 16

U9

PAD17

I/O

PCI Multiplexed Address and Data Bit 17

Y8

PAD18

I/O

PCI Multiplexed Address and Data Bit 18

W8

PAD19

I/O

PCI Multiplexed Address and Data Bit 19

V8

PAD20

I/O

PCI Multiplexed Address and Data Bit 20

Y7

PAD21

I/O

PCI Multiplexed Address and Data Bit 21

W7

PAD22

I/O

PCI Multiplexed Address and Data Bit 22

V7

PAD23

I/O

PCI Multiplexed Address and Data Bit 23

U7

PAD24

I/O

PCI Multiplexed Address and Data Bit 24

V6

PAD25

I/O

PCI Multiplexed Address and Data Bit 25

Y5

PAD26

I/O

PCI Multiplexed Address and Data Bit 26