SS1621 datasheet(12/15 Pages) ETC2

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SS1621

p. 12

Last update: 2008-06-03 04:36

READ-MODIFY-WRITE mode (command code: 101 )

READ-MODIFY-WRITE mode (successive address accessing)

Command mode (command code: 100 )

Mode (data and command mode)

Note: It is recommended that the host controller should read in the data from the DATA line be-

tween the rising edge of the RD line and the falling edge of the next RD line.

D0 D1 D2 D3

A3 A2 A1 A0

A5 A4

Memory Address 1 (MA1) Data (MA1) Data (MA1)

Memory Address 2 (MA2) Data (MA2) Data (MA2)

DATA

D0 D1 D2 D3

A3 A2 A1 A0

A5 A4

D0 D1 D2 D3 D0 D1 D2 D3

Memory Address (MA) Data (MA)

Data (MA+1)

Data (MA+2) Data (MA+2)

DATA

A3 A2 A1 A0

A5 A4

D0 D1 D2 D3 D0 D1 D2 D3 D0 D1 D2 D3 D0 D1 D2 D3 D0 D1 D2 D3 D0 D1 D2 D3

Data (MA)

Data (MA+1)

D0 D1 D2

Command 1

C2 C1 C0

C6 C5 C4 C3

C8 C7

DATA

C2 C1 C0

C6 C5 C4 C3

C8 C7

Command…

Command i

Command

Data Mode

Command

Data Mode

DATA

Address & Data

Command

Data Mode

Address & Data

Command

Data Mode

Address & Data

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