參數(shù)資料
型號: HMS30C2000
英文描述: [Application Specific Solution Product]
中文描述: [專用解決方案產(chǎn)品]
文件頁數(shù): 60/161頁
文件大?。?/td> 973K
代理商: HMS30C2000
HMS30C7110
2003 MagnaChip Semiconductor Ltd. All Rights Reserved
Version 1.5
60
10
= 10-bit column width
11 = Reserved
15:14
0x0
Reserved
13: 8
RW
0x0
START ADDRESS (Reserved for future usage)
7: 6
0x0
Reserved
5: 0
RW
0x3f
END ADDRESS (Reserved for future usage)
2.5.2.2.
Timing
This register includes the timing information for all banks.
Table 2.17 Timing register
Address :
1908_0010
Bits
Access Default Description
31
WO
0x0
NOP
When writing 1 at this bit, it will make NOP command to SDRAM
30:28 RW
0x7
TMODE (Mode Register Set to Active Delay)
This 3-bit field specifies the number of cycles guaranteed between mode
register set command at the end of the initialization sequence and the
first activate command.
27
0x0
Reserved.
26:24 RW
0x7
DPL (Write to Pre-charge Delay)
This 3-bit field specifies the number of cycles guaranteed between write
command and a pre-charge command.
23
0x0
Reserved.
22:20 RW
0x7
RCD (RAS to CAS Delay)
This 3-bit field specifies the number of cycles between RAS and CAS.
19
0x0
Reserved
18:16 RW
0x7
RP (Row Pre-charge Time)
This 3-bit field specifies the number of cycles needed for the pre-charge
command. A RP value of zero results in a RAS pre-charge of two clocks,
as if RP was selected to 1.
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