NHE6300ESB S L7XJ Intel, NHE6300ESB S L7XJ Datasheet - Page 525
NHE6300ESB S L7XJ
Manufacturer Part Number
NHE6300ESB S L7XJ
Description
Manufacturer
Intel
Datasheet
1.NHE6300ESB_S_L7XJ.pdf
(848 pages)
Specifications of NHE6300ESB S L7XJ
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11—Intel
11.2.3.2 Offset 04h: USB PIDs Register
Table 422. Offset 04h: USB PIDs Register
11.2.3.3 Offset 08h: Data Buffer Bytes 7:0
Table 423. Offset 08h: Data Buffer Bytes 7:0
November 2007
Order Number: 300641-004US
NOTE: This DWORD register is used to communicate PID information between the USB debug driver and the
NOTE: This register may be accessed as eight separate 8-bit registers or two separate 32-bit registers.
31:2
23:1
15:8
63:0
Bits
Bits
Default Value:
Default Value:
7:0
4
6
USB debug port. The debug port uses some of these fields to generate USB packets, and uses other fields
to return PID information to the USB debug driver.
Device:
Device:
®
Offset:
RECEIVED_PID_STS[23:
Offset:
TOKEN_PID_CNT[7:0]:
SEND_PID_CNT[15:8]
6300ESB ICH
DATABUFFER[63:0
Reserved
29
04h
TBD
29
08h
0000000000000000h
Name
Name
16]
These are the 8 bytes of the data buffer. Bits 7:0 correspond
to least significant byte (byte 0). Bits 63:56 correspond to the
most significant byte (byte 7).
The bytes in the Data Buffer must be written with data before
software initiates a write request. For a read request, the
Data Buffer contains valid data when DONE_STS bit is cleared
by the hardware, ERROR_GOOD#_STS is cleared by the
hardware, and the DATA_LENGTH_CNT field indicates the
number of bytes that are valid.
Reserved. These bits will return ’0’ when read. Writes will
have no effect.
The hardware updates this field with the received PID for
transactions in either direction. When the controller is writing
data, this field is updated with the handshake PID that is
received from the device. When the host controller is reading
data, this field is updated with the data packet PID (when the
device sent data), or the handshake PID (when the device
NAKs the request). This field is valid when the hardware
clears the GO_DONE#_CNT bit.
The hardware sends this PID to begin the data packet when
sending data to USB (i.e., WRITE_READ#_CNT is asserted).
Software will typically set this field to either DATA0 or DATA1
PID values.
The hardware sends this PID as the Token PID for each USB
transaction. Software will typically set this field to either IN,
OUT or SETUP PID values.
Description
Description
Attribute:
Attribute:
Function:
Function:
Size:
Size:
7
Read/WRite
32-bit
7
Read/Write
64-bit
Intel
®
6300ESB I/O Controller Hub
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Access
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