Independent i/o mode register decoding, Table 31: independent i/o mode register decoding – Silicon Image SiliconDrive SSD-P16G(I)-3100 User Manual

Page 54

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ATA

AND

T

RUE

IDE R

EGISTER

D

ECODING

SSD-P

XXX

(I)-3100 D

ATA

S

HEET

S

ILICON

S

YSTEMS

P

ROPRIETARY

This document and the information contained within it is confidential and proprietary to SiliconSystems, Inc.

All unauthorized use and/or reproduction is prohibited.

3100P-06DSR

P

AGE

44

F

EBRUARY

2, 2009

I

NDEPENDENT

I/O M

ODE

R

EGISTER

D

ECODING

Independent I/O mode or contiguous I/O mode requires the host to decode a
continuous block of 16 I/O registers to select the SiliconDrive.

Table 31: Independent I/O Mode Register Decoding

Reg# Offset A10 A9:A4 A3 A2 A1 A0 OE# = L

WE# = L

0

0

X

X

0

0

0

0

Even Data
Read

Even Data
Write

0

1

X

X

0

0

0

1

Error

Feature

0

2

X

X

0

0

1

0

Sector Count

Sector Count

0

3

X

X

0

0

1

1

Sector
Number

Sector
Number

0

4

X

X

0

1

0

0

Cylinder Low

Cylinder Low

0

5

X

X

0

1

0

1

Cylinder High

Cylinder High

0

6

X

X

0

1

1

0

Drive/Head

Drive/Head

0

7

X

X

0

1

1

1

Status

Command

0

8

X

X

1

0

0

0

Duplicate
Even Data
Read

Duplicate
Even Data
Write

0

9

X

X

1

0

0

1

Duplicate Odd
Data Read

Duplicate Odd
Data Write

0

D

X

X

1

1

0

1

Duplicate Error Duplicate

Feature

0

E

X

X

1

1

1

0

Alternate
Status

Device Control

0

F

X

X

1

1

1

1

Drive Address Reserved

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