參數(shù)資料
型號: ISD-T360SB
廠商: Electronic Theatre Controls, Inc.
英文描述: VoiceDSP Digital Speech Processor with Master/Slave, Full-Duplex Speakerphone, Multiple Flash and ARAM/DRAM Support
中文描述: VoiceDSP數(shù)字語音處理器與主/從,全雙工揚聲器,多重閃光和雅藍/內(nèi)存支持
文件頁數(shù): 34/109頁
文件大?。?/td> 1567K
代理商: ISD-T360SB
1—HARDWARE
ISD-T360SB
1-26
Voice Solutions in Silicon
Figure 1-26: ARAM/DRAM Power-Down Refresh Cycle Timing
Figure 1-27: DRAM Read Cycle Timing
T2W2
6xT2W
T2
T2W3
1.
A0-A10 in the IRE environment, when Expansion
Memory is disabled; otherwise A0-A15.
This cycle may be either TI (Idle) or T1 of any non-DRAM bus cycle. If the next bus cycle is to DRAM, T3 is followed by
three TI (Idle) cycles.
An external device can drive data from T2W3 to T3.
2.
3.
CTTL
RAS
CAS
A0-10
or
DWE
D0-1,
D3-7
D2/RA11
TI
TI
T1
T2W1
T2W1
TI
T1
T3
TI
Row
Column
t
RASa
t
RASh
t
RASia
t
RASh
t
CASa
t
CASh
t
CASia
t
CASh
t
Av
t
Ah
D2 In
t
Df
t
Df
t
Av
t
DIs
t
DIh
t
DIs
t
DIh
t
Df
(Note 1)
(Note 3)
(Note 3)
T2W2 T2W3
(Note 2)
Data In
RA11
t
Av
t
Ah
RA11
A0-15
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