參數資料
型號: FW82439TX
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項-數據表參考
文件頁數: 60/102頁
文件大?。?/td> 759K
代理商: FW82439TX
Extended Temperature 82439TX (MTXC) Datasheet
60
PRELIMINARY
speed grade conform to the SDRAM PC Specification For information on the performance of each of the
Speed grade parts, refer to the DRAM performance section. The Three speed grade parts are shown in
Table 15.
Table 15. SDRAM Speed Grade Parts
Speed Grade
CAS latency (CL)
RAS to CAS (Trcd)
System Frequency
66.67 MHz
3
3
60/66 MHz
66.67 MHz
3
2
60/66 MHz
66.67 MHz
2
2
60/66 MHz
SDRAM Command Reference
The 430TX supports the following commands:
Command
Command
Mode Register Set (MRS)
No Operation (NOP)
Activate Bank (ACT)
Auto Refresh CBR (REFR)
Read Bank (RD)
Data Write/Output Enable
Write Bank (WR)
Data Mask/Output Disable
Precharge All Banks (PALL)
Self Refresh Entry
Deselect Device
Self Refresh Exit
Table 16 MRS command (Mode Register Set) Supported by the MTXC.
Table 16. Command Fields
A11
A10
A9
A8
A7
A[6:4]
A3
A[2:0]
0
0
0
0
0
CL
WT
BL
CAS Latency Field (CL)
Wrap Type Field (WT)
Burst Length Field (BL)
Bits[6:4]
CAS Latency
Bit 3
Type
Bits[2:0]
Burst Length
010
2
0
X
010
4
011
3
1
Interleave
All Other
X
All Other
X
The linear order addressing is
not supported.
NOTES:
1.
X=Don’t Care. These Modes are Don’t Care for MTXC specific implementation.
相關PDF資料
PDF描述
FW82815 Controller Miscellaneous - Datasheet Reference
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