参数资料
型号: ADSP-21160NCB-100
厂商: ANALOG DEVICES INC
元件分类: 数字信号处理
英文描述: 64-BIT, 50 MHz, OTHER DSP, PBGA400
封装: 27 X 27 MM, METRIC, PLASTIC, MS-034BAL-2, BGA-400
文件页数: 27/60页
文件大小: 1296K
代理商: ADSP-21160NCB-100
ADSP-21160M/ADSP-21160N
Rev. B
|
Page 33 of 60
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February 2010
Multiprocessor Bus Request and Host Bus Request
See Table 22 and Figure 19. Use these specifications for passing
of bus mastership between multiprocessing ADSP-21160x DSPs
(BRx) or a host processor, both synchronous and asynchronous
(HBR, HBG).
Table 22. Multiprocessor Bus Request and Host Bus Request
Parameter
Min
Max
Unit
Timing Requirements
tHBGRCSV
HBG Low to RDx/WRx/CS Valid
1
6.5 + tCK + tCCLK – 12.5CR ns
tSHBRI
HBR Setup Before CLKIN
2
6ns
tHHBRI
HBR Hold After CLKIN2
1ns
tSHBGI
HBG Setup Before CLKIN
6
ns
tHHBGI
HBG Hold After CLKIN High
1
ns
tSBRI
BRx, PA Setup Before CLKIN
9
ns
tHBRI
BRx, PA Hold After CLKIN High
1
ns
tSRPBAI
RPBA Setup Before CLKIN
6
ns
tHRPBAI
RPBA Hold After CLKIN
2
ns
Switching Characteristics
tDHBGO
HBG Delay After CLKIN
7
ns
tHHBGO
HBG Hold After CLKIN
3
1.5
ns
tDBRO
BRx Delay After CLKIN
8
ns
tHBRO
BRx Hold After CLKIN
1.5
ns
tDPASO
PA Delay After CLKIN, Slave
8
ns
tTRPAS
PA Disable After CLKIN, Slave
1.5
ns
tDPAMO
PA Delay After CLKIN, Master
0.25tCCLK+9
ns
tPATR
PA Disable Before CLKIN, Master4
0.25tCCLK –5.5
ns
tDRDYCS
REDY (O/D) or (A/D) Low from CS and HBR Low
5, 6
0.5tCK+1.0
ns
tTRDYHG
REDY (O/D) Disable or REDY (A/D) High from HBG
tCK+15
ns
tARDYTR
REDY (A/D) Disable from CS or HBR High
11
ns
1 For ADSP-21160M, specification is 19 ns, maximum.
2 Only required for recognition in the current cycle.
3 For ADSP-21160M, specification is 2 ns, maximum.
4 For ADSP-21160M, specification is 0.25tCK–5 ns, minimum.
5 (O/D) = open drain, (A/D) = active drive.
6 For ADSP-21160M, specification is 0.5tCK ns, maximum.
7 For ADSP-21160M, specification is tCK+25 ns, maximum.
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