參數(shù)資料
型號: ADSP-21060LCWZ-160
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號處理
英文描述: 48-BIT, 40 MHz, OTHER DSP, CQFP240
封裝: THERMALLY ENHANCED, METRIC, HEAT SINK, CERAMIC, QFP-240
文件頁數(shù): 18/48頁
文件大?。?/td> 481K
代理商: ADSP-21060LCWZ-160
ADSP-21060C/ADSP-21060LC
–25–
REV. B
ADSP-21060C
ADSP-21060LC
Parameter
Min
Max
Min
Max
Unit
Timing Requirements:
tHBGRCSV HBG Low to RD/WR/CS Valid
1
20+ 5DT/4
ns
tSHBRI
HBR Setup before CLKIN2
20 + 3DT/4
ns
tHHBRI
HBR Hold before CLKIN2
14 + 3DT/4
ns
tSHBGI
HBG Setup before CLKIN
13 + DT/2
ns
tHHBGI
HBG Hold before CLKIN High
6 + DT/2
ns
tSBRI
BRx, CPA Setup before CLKIN3
13 + DT/2
ns
tHBRI
BRx, CPA Hold before CLKIN High
6 + DT/2
ns
tSRPBAI
RPBA Setup before CLKIN
21 + 3DT/4
ns
tHRPBAI RPBA Hold before CLKIN
12 + 3DT/4
ns
Switching Characteristics:
tDHBGO HBG Delay after CLKIN
7 – DT/8
ns
tHHBGO HBG Hold after CLKIN
–2 – DT/8
ns
tDBRO
BRx Delay after CLKIN
7 – DT/8
ns
tHBRO
BRx Hold after CLKIN
–2 – DT/8
ns
tDCPAO
CPA Low Delay after CLKIN
8 – DT/8
8.5 – DT/8
ns
tTRCPA
CPA Disable after CLKIN
–2 – DT/8
4.5 – DT/8
–2 – DT/8
4.5 – DT/8
ns
tDRDYCS REDY (O/D) or (A/D) Low from CS
and
HBR Low4
8.5
11.0
ns
tTRDYHG REDY (O/D) Disable or REDY (A/D)
High from
HBG4
40 + 23DT/16
ns
tARDYTR REDY (A/D) Disable from CS or
HBR High4
10
ns
NOTES
1For first asynchronous access after
HBR and CS asserted, ADDR
31-0 must be a non-MMS value 1/2 tCK before RD or WR goes low or by tHBGRCSV after HBG goes
low. This is easily accomplished by driving an upper address signal high when
HBG is asserted. See the “Host Processor Control of the ADSP-2106x” section in the
ADSP-2106x SHARC User’s Manual, Second Edition.
2Only required for recognition in the current cycle.
3
CPA assertion must meet the setup to CLKIN; deassertion does not need to meet the setup to CLKIN.
4(O/D) = open drain, (A/D) = active drive.
Multiprocessor Bus Request and Host Bus Request
Use these specifications for passing of bus mastership between
multiprocessing ADSP-2106xs (
BRx) or a host processor
(
HBR, HBG).
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