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SM5906AF Datasheet(PDF) 15 Page - Nippon Precision Circuits Inc

Part # SM5906AF
Description  Shock-proof Memory Controller for Video CD Players
PDF  30 Pages
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Manufacturer  NPC [Nippon Precision Circuits Inc]
Direct Link  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM5906AF Datasheet(HTML) 15 Page - Nippon Precision Circuits Inc

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NIPPON PRECISION CIRCUITS-15
SM5906AF
Bit
Name
Function
HIGH-level state
S7
FLAG6
Signal processor IC jitter margin exceeded
Exceeded
S6
MSOVF
Write overflow (Read once only when RA exceeds WA)
DRAM overflow
S5
BOVF
Input buffer memory overflow
Input buffer memory overflow
because sampling rate of input data is too fast
S4
SYNCER
Sync data not verified for
≥ 2 blocks
Sync data not received
S3
DCOMP
Data compare-connect sequence operating
Compare-connect sequence operating
S2
MSWIH
Write sequence stop due to internal factors
Writing stopped
S1
MSRIH
Read sequence stop due to internal factors
Reading stopped
S0
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
S7
MSEMP
Valid data empty state (Always HIGH when RA exceeds VWA)
No valid data
S6
OVFL
Write overflow state (Always HIGH when WA exceeds RA)
Memory full
S5
WRSQ
WR sequence operating state
Writing
S4
RDSQ
RD sequence operating state
Reading
S3
S2
S1
S0
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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