MS82V16520 Ver la hoja de datos (PDF) - Oki Electric Industry

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MS82V16520

262,144-Word x 32-Bit x 2-Bank Synchronous Graphics RAM

Oki Electric Industry 

¡ Semiconductor

MS82V16520

Function Truth Table (2/5)

Current State CS RAS CAS WE DSF Address

Action

Read

(RD)

H¥¥¥¥

LHHH¥

¥

NOP (Continue Row Active after Burst ends)

¥

NOP (Continue Row Active after Burst ends)

LHHLH

¥

ILLEGAL

LHHL L

¥

1, 2, 4, 8 Burst Length; ILLEGAL

Full Page Burst; Burst Stop Æ Bank Active

LHLHH

¥

ILLEGAL

L H L H L BA, CA, AP Term Burst, new Read

L H L L H BA, CA, AP Term Burst, start Block Write

L H L L L BA, CA, AP Term Burst, start Write

L L H H H BA, RA ILLEGAL

L L H H L BA, RA ILLEGAL

LLHLH

¥

ILLEGAL

L L H L L BA, AP Term Burst, execute Row Precharge

L L LHH

¥

ILLEGAL

LLLHL

¥

ILLEGAL

L L L L H Op-Code ILLEGAL

L L L L L Op-Code ILLEGAL

Write/Block Write H ¥ ¥ ¥ ¥

(WT/BW)

LHHH¥

¥

NOP (Continue Row Active after Burst ends)

¥

NOP (Continue Row Active after Burst ends)

LHHLH

¥

ILLEGAL

LHHL L

¥

1, 2, 4, 8 Burst Length; ILLEGAL

Full Page Burst; Burst Stop Æ Row Active

LHLHH

¥

ILLEGAL

L H L H L BA, CA, AP Term Burst, start Read

L H L L H BA, CA, AP Term Burst, new Block Write

L H L L L BA, CA, AP Term Burst, new Write

L L H H H BA, RA ILLEGAL

L L H H L BA, RA ILLEGAL

LLHLH

¥

ILLEGAL

L L H L L BA, AP Term Burst, execute Row Precharge

L L LHH

¥

ILLEGAL

LLLHL

¥

ILLEGAL

L L L L H Op-Code ILLEGAL

L L L L L Op-Code ILLEGAL

Note 1

Note

2

2

2

2

11/66

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