參數(shù)資料
型號: ADSP-21MSP59
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號處理
英文描述: DSP Microcomputer(DSP 微計算機(jī))
中文描述: 24-BIT, 13 MHz, OTHER DSP, PQFP100
封裝: METRIC, PLASTIC, TQFP-100
文件頁數(shù): 33/40頁
文件大?。?/td> 392K
代理商: ADSP-21MSP59
ADSP-21msp58/59
REV. 0
–33–
Parameter
Min
Max
Unit
Host Interface Port
Multiplexed Data and Address (HMD1 = 1)
Read Strobe and Write Strobe (HMD0 = 0)
T iming Requirement:
t
HALP
t
HASU
t
HAH
t
HALS
t
HDSU
t
HWDH
t
HRWP
ALE Pulse Width
HAD15-0 Address Setup, before ALE Low
HAD15-0 Address Hold after ALE Low
Start of Write or Read after ALE Low
1, 2
HAD15-0 Data Setup before End of Write
3
HAD15-0 Data Hold after End of Write
3
Read or Write Pulse Width
5
10
5
2
10
5
3
20
ns
ns
ns
ns
ns
ns
ns
Switching Characteristic:
t
HSHK
t
HK H
t
HDE
t
HDD
t
HRDH
t
HRDD
HACK
Low after Start of Write or Read
1, 2
HACK
Hold after End of Write or Read
3, 4
HAD15-0 Data Enabled after Start of Read
2
HAD15-0 Data Valid after Start of Read
2
HAD15-0 Data Hold after End of Read
HAD15-0 Data Disabled after End of Read
4
0
0
0
15
15
ns
ns
ns
ns
ns
ns
18
0
7
NOT ES
1
Start of Write =
HWR
Low and
HSEL
Low.
2
Start of Read =
HRD
Low and
HSEL
Low.
3
End of Write =
HWR
High or
HSEL
High.
4
End of Read =
HRD
High or
HSEL
High.
5
Read Pulse Width =
HRD
Low and
HSEL
Low, Write Pulse Width =
HWR
Low and
HSEL
Low.
t
HKH
ALE
t
HRWP
ADDRESS
t
HALP
DATA
t
HSHK
t
HWDH
t
HDSU
HSEL
HACK
HOST WRITE CYCLE
HAD7–0
HWR
t
HALS
t
HASU
t
HAH
t
HKH
ALE
t
HRWP
ADDRESS
t
HALP
DATA
t
HSHK
t
HRDH
t
HDE
HSEL
HACK
HOST READ CYCLE
HAD7–0
HRD
t
HALS
t
HASU
t
HAH
t
HRDD
t
HDD
Figure 23. Host Interface Port (HMD1 = 1, HMD0 = 0)
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