NH82801HEM S LB9B Intel, NH82801HEM S LB9B Datasheet - Page 550
NH82801HEM S LB9B
Manufacturer Part Number
NH82801HEM S LB9B
Description
Manufacturer
Intel
Datasheet
1.NH82801HEM_S_LB9B.pdf
(890 pages)
Specifications of NH82801HEM S LB9B
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13.1.24
Note:
550
SDMA_TIM—Synchronous DMA Timing Register
(SATA–D31:F5)
Address Offset: 4Ah
Default Value:
This register is R/W to maintain software compatibility and enable parallel ATA
functionality when the PCI functions are combined. These bits have no effect on SATA
operation, unless otherwise noted.
15:10
9:8
7:2
1:0
Bit
Reserved
Secondary Drive 0 Cycle Time (SCT0) — R/W. For Ultra ATA mode. The setting of
these bits determines the minimum write strobe cycle time (CT). The DMARDY#-to-
STOP (RP) time is also determined by the setting of these bits.
Reserved
Primary Drive 0 Cycle Time (PCT0) — R/W. For Ultra ATA mode, the setting of these
bits determines the minimum write strobe cycle time (CT). The DMARDY#-to-STOP
(RP) time is also determined by the setting of these bits.
00 = CT 4 clocks,
01 = CT 3 clocks,
10 = CT 2 clocks,
00 = CT 4 clocks,
01 = CT 3 clocks,
10 = CT 2 clocks,
(33 MHz clock)
(33 MHz clock)
11 = Reserved
11 = Reserved
RP 6 clocks
RP 5 clocks
RP 4 clocks
RP 6 clocks
RP 5 clocks
RP 4 clocks
SCB1 = 0
PCB1 = 0
0000h
–
4Bh
01 = CT 3 clocks,
10 = CT 2 clocks,
(66 MHz clock)
01 = CT 3 clocks,
10 = CT 2 clocks,
(66 MHz clock)
00 = Reserved
11 = Reserved
00 = Reserved
11 = Reserved
RP 8 clocks
RP 8 clocks
RP 8 clocks
RP 8 clocks
SCB1 = 1
PCB1 = 1
Description
Attribute:
Size:
SATA Controller Registers (D31:F5)
01 = CT 3 clocks, RP 16 clocks
01 = CT 3 clocks, RP 16 clocks
R/W
16 bits
(133 MHz clock)
FAST_SCB1 = 1
(133 MHz clock)
FAST_PCB1 = 1
Intel
00 = Reserved
10 = Reserved
11 = Reserved
00 = Reserved
10 = Reserved
11 = Reserved
®
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