s3c4510b Samsung Semiconductor, Inc., s3c4510b Datasheet - Page 197

• Manufacturer Part Number: s3c4510b
• Description: 16/32-bit Risc Microcontroller
• Manufacturer: Samsung Semiconductor, Inc.

S3C4510B
nSDRAS
nSDCAS
MCLKO
nSDCS
ADDR
DQM
SCLK
nDWE
DATA
CKE
Figure 4-35. Non-burst, Read-Write-Read Cycles @CAS Latency = 2, Burst Length = 1
(All banks)
Precharge
1
NOTES:
1.
2.
3.
t
RP
2
There is minimum 1 cycle gap between data-in and data-out of
Only valid signals go to zero during write operation.
All DQM signals go to zero during read operation.
SDRAM to prevent bus confliction.
Active
0xF
Row
3
Row
t
RCD
4
Col0
Read
0x0
(2)
5
6
Fetch
0xF
Rd
7
8
Write
Col1
Wd
(3)
9
(1)
Read
0x0
10
Col2
11
SYSTEM MANAGER
0xF
Fetch
12
Rd
13
4-55