W90221X Winbond Electronics Corp America, W90221X Datasheet - Page 60

• Manufacturer Part Number: W90221X
• Description: Pa-risc Embedded Controller
• Manufacturer: Winbond Electronics Corp America

DRAM Timing Control Register 1 (DRAMTCTL1)
Port address: 0x0000003e
Bits 0-9
Bits 10-12
Bits 13-15
W90221X version 0.6
0
8
Reserved
1
9
Reserved
Active to read or write delay t
Last data-in to active command period during write cycle
Active to Read/Write Delay [0:2]
DRAMTCTL1
DRAMTCTL1
10
[10:12]
[13:15]
2
111
000
001
010
011
100
101
110
111
000
001
010
011
100
101
110
111
Access type: read/write
11
3
Last Data-in to
Reserved
Delay (MCLK)
ACT Period
Read/Write
9 (default)
Active to
(MCLK)
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
12
4
RCD
13
5
LDI2ACT[0:2]
14
6
Default: 0x0
15
7
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