FW82801DB S L66K Intel, FW82801DB S L66K Datasheet - Page 461
FW82801DB S L66K
Manufacturer Part Number
FW82801DB S L66K
Description
Manufacturer
Intel
Datasheet
1.FW82801DB_S_L66K.pdf
(587 pages)
Specifications of FW82801DB S L66K
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13.2.9
13.2.10
.
13.2.11
.
Intel
®
82801DB ICH4 Datasheet
RCV_SLVA—Receive Slave Address Register
Register Offset:
Default Value:
Lockable:
SLV_DATA—Receive Slave Data Register
Register Offset:
Default Value:
Lockable:
This register contains the 16-bit data value written by the external SMBus master. The processor
can then read the value from this register. This register is reset by RSMRST#, but not PCIRST#.
AUX_STS—Auxiliary Status Register
Register Offset:
Default Value:
Lockable:
15:8
Bit
6:0
Bit
7:0
Bit
7:1
7
0
Reserved
SLAVE_ADDR — R/W. This field is the slave address that the ICH4 decodes for read and write
cycles. the default is not 0, so the SMBus Slave Interface can respond even before the processor
comes up (or if the processor is dead). This register is cleared by RSMRST#, but not by PCIRST#.
Data Message Byte 1 (DATA_MSG1) — RO. See
Data Message Byte 0 (DATA_MSG0) — RO. See
Reserved
CRC Error (CRCE) — R/WC.
0 = Software clears this bit by writing a 1 to it.
1 = This bit is set if a received message contained a CRC error. When this bit is set, the DERR bit of
the host status register will also be set. This bit will be set by the controller if a software abort
occurs in the middle of the CRC portion of the cycle or an abort happens after the ICH4 has
received the final data bit transmitted by an external slave
09h
44h
No
0Ah
0000h
No
0Ch
00h
No
Description
Description
Description
Attribute:
Size:
Power Well:
Attribute:
Size:
Power Well:
Attribute:
Size:
Power Well:
Section 5.18.7
Section 5.18.7
SMBus Controller Registers (D31:F3)
.
for a discussion of this field.
for a discussion of this field.
R/W
8 bits
Resume
RO
16 bits
Resume
RW/C
8 bits
Resume
461
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