IDT49C465 データシートの表示（PDF） - Integrated Device Technology

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IDT49C465

32-BIT FLOW-THRU ERROR DETECTION AND CORRECTION UNIT

Integrated Device Technology 

IDT49C465/A

32-BIT FLOW-THRU ERROR DETECTION AND CORRECTION UNIT

MILITARY AND COMMERCIAL TEMPERATURE RANGES

PRIMARY DATA PATH vs. MEMORY CONFIGURATION

SEPARATE I/O MEMORIES:

COMMON I/O MEMORIES:

1. Checkbit Generation

Write New Word to Memory

CPU

SD MD

P

CBO

IDT49C465

CBI

DIN

MAIN

MEMORY

DOUT

CHECKBIT

MEMORY

1. Checkbit Generation

Write New Word to Memory

CPU

SD MD

P

IDT49C465

CBO

CBI

I/O

MAIN

MEMORY

CHECKBIT

MEMORY

2. Data Correction

Read Memory Word

CPU

CORRECTED

SD MD

P

CBO

IDT49C465

CBI

DIN

MAIN

MEMORY

DOUT

CHECKBIT

MEMORY

2. Data Correction

Read Memory Word

CORRECTED

CPU

SD MD

P

IDT49C465

CBO

CBI

I/O

MAIN

MEMORY

CHECKBIT

MEMORY

3. Memory Generation

Re-write Corrected Word to Memory

CPU

CORRECTED

SD MD

P

CBO

IDT49C465

CBI

DIN

MAIN

MEMORY

DOUT

CHECKBIT

MEMORY

3. Memory Generation

Re-write Corrected Word to Memory

CORRECTED

CPU

SD MD

P

IDT49C465

CBO

CBI

CORRECTED

I/O

MAIN

MEMORY

CHECKBIT

MEMORY

2552 drw 13

11.7

11

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