參數(shù)資料
型號: MSM7630
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: Universal Speech Processor(通用語音處理器)
中文描述: 通用語音處理器(通用語音處理器)
文件頁數(shù): 52/89頁
文件大小: 430K
代理商: MSM7630
MSM7630
Semiconductor
52/89
6. DRAM Access
There are two MSM7630 interfaces with DRAM: one when byte position is specified by
CAS
, and one
when byte position is specified by
WE
. This is set by the DRAM register’s TP field.
An interface example when byte position is specified by
CAS
is shown below.
An interface example when byte position is specified by
WE
is shown below.
Refer to the timing chart for basic timing of DRAM accesses.
MSM7630
Axx
CAS
[0 : 1]
WE
Axx
CAS
WE
DRAM
Dxx
RAS
RAS
Data
External Bus
MSM7630
Axx
WE
CAS
[0 : 1]
Axx
CAS
WE
DRAM
Dxx
RAS
RAS
Data
External Bus
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