tc59ym916bkg24a ETC-unknow, tc59ym916bkg24a Datasheet - Page 37

• Manufacturer Part Number: tc59ym916bkg24a
• Description: The Second Generation 512-megabit Xdrtm Dram
• Manufacturer: ETC-unknow

Figure 21. RQ Scan High (RQH) Register
Figure 22. RQ Scan Low (RQL) Register
Figure 23. Refresh Bank (REFB) Control Register
Figure 24. Refresh High (REFH) Row Register
Figure 25. Refresh Middle (REFM) Row Register
MBR [1:0]
7
7
7
7
7
6
6
6
6
6
reserved
reserved
5
5
5
5
5
reserved
RQL [7:0]
4
4
4
4
4
reserved
3
3
3
3
3
RQH [3:0]
2
2
2
2
2
BANK [2:0]
R [10:8]
1
1
1
1
1
TC59YM916BKG24A,32A,32B,40B,32C,40C
0
0
0
0
0
RQ Scan High Register
SADR [7:0]: 00000110
RQH [3:0] – Latched value of RQ [11:8] in RQ wire test mode.
RQ Scan Low Register
SADR [7:0]: 00000111
RQH [7:0] – Latched value of RQ [7:0] in RQ wire test mode.
Refresh Bank Control Register
SADR [7:0]: 00001000
BANK [2:0] – Refresh bank field.
This field returns the bank address for the next self-refresh
operation when in powerdown power state.
MBR [1:0]
Refresh High Row Register
SADR [7:0]: 00001001
Reserved – Refresh row field.
be refreshed during the next refresh interval. This row address will
be incremented after a REFI command for auto-refresh, or when
the BANK [2:0] field for the REFB register equals the maximum
bank address for self-refresh.
Refresh Middle Row Register
SADR [7:0]: 00001010
R [10:8] – Refresh row field.
will be refreshed during the next refresh interval. This row address
will be incremented after a REFI command for auto-refresh, or
when the BANK [2:0] field for the REFB register equals the
maximum bank address for self-refresh.
This field contains the middle-order bits of the row address that
This field contains the high-order bits of the row address that will
00
01
2
2
–
–
Single-bank refresh
Reserved
–
Multiple-bank and multi-row refresh control field.
2
2
2
2
2
10
11
REFM [7:0] resets to 00000000
REFH [7:0] resets to 00000000
REFB [7:0] resets to 00000000
RQH [7:0] resets to 00000000
RQL [7:0] resets to 00000000
2
2
–
–
Reserved
Reserved
2004-12-15 37/76
Read/write register
Read/write register
Read/write register
Read/write register
Read/write register
Rev 0.1
2
2
2
2
2