IDT49C465APQF 데이터 시트보기 (PDF) - Integrated Device Technology

부품명

상세내역

제조사

IDT49C465APQF

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

OPERATING MODE CHARTS

SLICE IDENTIFICATION

CODE ID 1 CODE ID 0

Slice Definition

0

0

32-bit Flow-Thru EDC

0

1

64-bit GENERATE Only EDC

1

0

64-bit EDC- Lower 32 bits (0-31)

1

1

64-bit EDC- Upper 32 bits (32-63)

2552 tbl 04

SLICE POSITION CONTROL

Checkbit Buses

Slice Position/

CODE Functional Operation

ID

10

Width =

SOE SD Bus

32

MOE

MD Bus

32

PPCCBBII

CCBBII

Bus

Bus

8

8

CCBBOO

Bus

8

SSYYOO

Bus

8

PP

Bus PERR

4

1

0 0 Single 32-bit EDC unit

Generate(1) 1 Sys. 0–31 0 Sys. Byte Mux

—

Detect/Correct(2) 0 Pipe. latch 1

MD 0–31

—

—

CBs out —

P in active

CBs in

— Syn. out P out —

0 1 “64-bit Generate-only” 1 Sys. 32–63 1 Sys. 0–31

—

—

CBs out —

——

1 0 Lower word, 64-bit bus

Generate(1)

Detect/Correct(2)

1 Sys. 0–31 0

0 Pipe. latch 1

MD 0–31

—

—

PCBs out —

P in active

MD 0–31 U-SYOout CBs in

— Par.Synd P out —

1 1 Upper word, 64-bit bus

Generate(1)

Detect/Correct(2)

1 Sys. 32–63 0

0 Pipe. latch 1

MD 32–63 L-CBOout —

F.CBs out —

P in active

MD 32–63

— L-SYOout — Par.Cbits P out —

NOTES:

1. Checkbits generated from the data in the SD Latch.

2. Corrected data residing in the Pipe Latch.

2552 tbl 05

FUNCTIONAL MODE CONTROL

Checkbit Buses

Functional Mode

of SD Bus

PCBI

CBI

MODE

SOE SD Bus MOE MD Bus Bus

Bus

CBO

Bus

210

Width =

32

32

8

8

8

x11

“Normal”

Generate 1 CPU Data 0 Pipe. latch —

Correct 0 Pipe. latch 1 RAM Data —

—

CB in

CB out

—

x 1 0 “Generate-Detect”

Generate 1 CPU Data 0 Pipe. latch —

Detect 0 Pipe. latch 1 RAM Data —

—

CB in

CB out

—

0 0 0 “Error-Data-Output” 0 Err. D. latch —

—

—

—

—

x 0 1 “Diagnostic-Output” 0 CBin latch —

—

PCBI in CB in

—

PCBIin bus

Syn. register

Err. counter

Er. type reg.

1 0 0 “Checkbit-Injection”

Generate 1 SDin latch 0 Pipe. latch —

Inject Checkbits 1 SD0–7 in 0 Pipe. latch —

Correct 0 Pipe. latch 1 RAM Data —

—

—

CB in

CB out

—

—

SYO

Bus

8

P

Bus PERR

4

1

—

P in active

— P out —

—

P in active

— P out —

—

——

—

——

—

P in active

—

——

— P out —

2552 tbl 06

11.7

10

Share Link: