Harman Kardon DVD 27 Service Manual page 58

DVD27
ESMT
MODE REGISTER FIELD TABLE TO PROGRAM MODES
Register Programmed with MRS
Address A13~A12
Function RFU
Test Mode
A8 A7 Type
0 0 Mode Register Set
0 1 Reserved
1 0 Reserved
1 1 Reserved
POWER UP SEQUENCE
1.Apply power and start clock, Attempt to maintain CKE = "H", DQM = "H" and the other pin are NOP condition at the inputs.
2. Maintain stable power , stable clock and NOP input condition for a minimum of 200us.
3. Issue precharge commands for all banks of the devices.
4. Issue 2 or more auto-refresh commands.
5. Issue mode register set command to initialize the mode register.
cf.) Sequence of 4 & 5 is regardless of the order.
The device is now ready for normal operation.
Note : 1. RFU(Reserved for future use) should stay "0" during MRS cycle.
Elite Semiconductor Memory Technology Inc.
A11~A10/AP A9
RFU RFU
CAS Latency
A6 A5 A4
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
A8 A7 A6 A5
TM CAS Latency
Burst Type
Latency A3 Type
Reserved 0 Sequential
Reserved 1 Interleave
2
3
Reserved
Reserved
Reserved
Reserved
58
harman/kardon
M12L64164A
A4 A3 A2 A1
BT Burst Length
Burst Length
A2 A1 A0 BT = 0
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0 Reserved Reserved
1 0 1 Reserved Reserved
1 1 0 Reserved Reserved
1 1 1 Full Page Reserved
Full Page Length : 256
Publication Date: Mar. 2003
Revision: 1.7
A0
BT = 1
1 1
2 2
4 4
8 8
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