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): 17/48頁
文件大小: 481K
代理商: ADSP-21060LCWZ-160
–24–
ADSP-21060C/ADSP-21060LC
REV. B
ADSP-21060C
ADSP-21060LC
Parameter
Min
Max
Min
Max
Unit
Timing Requirements:
tSADRI
Address,
SW Setup before CLKIN
15 + DT/2
ns
tHADRI
Address,
SW Hold before CLKIN
5 + DT/2
ns
tSRWLI
RD/WR Low Setup before CLKIN1
9.5 + 5DT/16
ns
tHRWLI
RD/WR Low Hold after CLKIN
–3.5 – 5DT/16
8 + 7DT/16
–3.75 – 5DT/16
8 + 7DT/16
ns
tRWHPI
RD/WR Pulse High
3
ns
tSDATWH Data Setup before WR High
5
ns
tHDATWH Data Hold after WR High
1
ns
Switching Characteristics:
tSDDATO Data Delay after CLKIN
19 + 5DT/16
19.25 + 5DT/16 ns
tDATTR
Data Disable after CLKIN
2
0 – DT/8
7 – DT/8
0 – DT/8
7 – DT/8
ns
tDACKAD ACK Delay after Address, SW
3
99
ns
tACKTR
ACK Disable after CLKIN
3
–1 – DT/8
6 – DT/8
–1 – DT/8
6 – DT/8
ns
NOTES
1t
SRWLI (min) = 9.5 + 5DT/16 when Multiprocessor Memory Space Wait State (MMSWS bit in WAIT register) is disabled; when MMSWS is enabled, t SRWLI (min)
= 4 + DT/8.
2See System Hold Time Calculation under Test Conditions for calculation of hold times given capacitive and dc loads.
3t
DACKAD is true only if the address and SW inputs have setup times (before CLKIN) greater than 10 + DT/8 and less than 19 + 3DT/4. If the address and SW inputs have
setup times greater than 19 + 3DT/4, then ACK is valid 14 + DT/4 (max) after CLKIN. A slave that sees an address with an M field match will respond with ACK
regardless of the state of MMSWS or strobes. A slave will three-state ACK every cycle with t ACKTR.
CLKIN
ADDRESS
SW
ACK
RD
DATA
(OUT)
WR
WRITE ACCESS
tSADRI
tHADRI
tDACKAD
tACKTR
tRWHPI
tHRWLI
tSRWLI
tSDDATO
tDATTR
tSRWLI
tHRWLI
tRWHPI
tHDATWH
tSDATWH
DATA
(IN)
READ ACCESS
Figure 16. Synchronous Read/Write—Bus Slave
Synchronous Read/Write—Bus Slave
Use these specifications for ADSP-2106x bus master accesses of
a slave’s IOP registers or internal memory (in multiprocessor
memory space). The bus master must meet these (bus slave)
timing requirements.
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