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| K4R761869A-F Datasheet, PDF (9/20 Pages) Samsung semiconductor – 576Mbit RDRAM (A-die) 1M x 18bit x 32s banks Direct RDRAMTM | |||
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K4R761869A
Direct RDRAMâ¢
T0
T1
T2
T3
CTM/CFM
T8
T9
T10
T11
CTM/CFM
ROW2 DR4T DR2 BR0 BR3 RsvR R8 R5 R2
ROW1 DR4F DR1 BR1 BR4 R9 R7 R4 R1
ROW0 DR3 DR0 BR2 RsvB AV=1 R6 R3 R0
ROW2 DR4T DR2 BR0 BR3 ROP10 ROP8 ROP5 ROP2
ROW1 DR4F DR1 BR1 BR4 ROP9 ROP7 ROP4 ROP1
ROW0 DR3 DR0 BR2 RsvB AV=0 ROP6 ROP3 ROP0
T0
CTM/CFM
ROWA Packet
T1
T2
T3
COL4 DC4 S=1
COL3 DC3
COL2 DC2 COP1
COL1 DC1 COP0
COL0 DC0 COP2
C6 C4
C5 C3
RsvB BC2 C2
BC4 BC1 C1
COP3 BC3 BC0 C0
T8
CTM/CFM
COLC Packet
T9
T10
T11
ROWR Packet
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15
CTM/CFM
ROW2
..ROW0
COL4
..COL0
ACT a0
PRER c0
WR b1
tPACKET
MSK (b1) PREX d0
DQA8..0
DQB8..0
T12
T13
T14
T15
CTM/CFM
COL4
S=1a MA7 MA5 MA3 MA1
COL4
COL3
M=1 MA6 MA4 MA2 MA0
COL3
COL2
MB7 MB4 MB1
COL2
COL1
MB6 MB3 MB0
COL1
COL0
MB5 MB2
COL0
a The COLM is associated with a
previous COLC, and is aligned
with the present COLC, indicated
by the Start bit (S=1) position.
COLM Packet
Figure 3: Packet Formats
S=1b DX4 XOP4 RsvB BX1
M=0 DX3 XOP3 BX4 BX0
DX2 XOP2 BX3
DX1 XOP1 BX2
DX0 XOP0
COLX Packet
b The COLX is aligned
with the present COLC,
indicated by the Start
bit (S=1) position.
Page 7
Version 1.41 Jan. 2004
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