SM5906AF datasheet(15/30 Pages) NPC

tên linh kiện	SM5906AF

Giải thích chi tiết về linh kiện	Shock-proof Memory Controller for Video CD Players

PDF	30 Pages

Scroll/Zoom	100%

nhà sản xuất	NPC [Nippon Precision Circuits Inc]

Trang chủ	http://www.npc.co.jp/en

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NIPPON PRECISION CIRCUITS-15

SM5906AF

Bit

Name

Function

HIGH-level state

FLAG6

Signal processor IC jitter margin exceeded

Exceeded

MSOVF

Write overflow (Read once only when RA exceeds WA)

DRAM overflow

BOVF

Input buffer memory overflow

because sampling rate of input data is too fast

SYNCER

Sync data not verified for

≥ 2 blocks

Sync data not received

DCOMP

Data compare-connect sequence operating

Compare-connect sequence operating

MSWIH

Write sequence stop due to internal factors

Writing stopped

MSRIH

Read sequence stop due to internal factors

Reading stopped

SYNCWAR

Sync data not verified for 1 block

Sync data not received

1001 0000

90hex =

Refer to "Status flag operation summary".

Bit

Name

Function

HIGH-level state

MSEMP

Valid data empty state (Always HIGH when RA exceeds VWA)

No valid data

OVFL

Write overflow state (Always HIGH when WA exceeds RA)

Memory full

WRSQ

WR sequence operating state

Writing

RDSQ

RD sequence operating state

Reading

1001 0001

91hex =

Refer to "Status flag operation summary".

Read command summary

Shock-proof memory status (1) 90

Shock-proof memory status (2) 91

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