NH82801GHM S L8YR Intel, NH82801GHM S L8YR Datasheet - Page 217

• Manufacturer Part Number: NH82801GHM S L8YR
• Manufacturer: Intel

Specifications of NH82801GHM S L8YR

• Lead Free Status / RoHS Status: Compliant

Functional Description
5.20.10.1.2
Intel
®
ICH7 Family Datasheet
An IN transaction receives data from the debug device. It can occur only when the
following are true:
The sequence of the transaction is:
IN Transactions
4. After sending the data packet, the controller waits for a handshake response from
1. Software sets the appropriate values in the following bits:
2. The debug port controller sends a token packet consisting of:
3. After sending the token packet, the debug port controller waits for a response from
4. If valid packet was received from the device that was one byte in length (indicating
• If a handshake is received, the debug port controller:
• If no handshake PID is received, the debug port controller:
• The debug port is enabled
• The debug software sets the GO_CNT bit
• The WRITE_READ#_CNT bit is reset
the debug device.
the debug device.
If a response is received:
it was a handshake packet), then the debug port controller:
— a. Places the received PID in the RECEIVED_PID_STS field
— b. Resets the ERROR_GOOD#_STS bit
— c. Sets the DONE_STS bit
— a. Sets the EXCEPTION_STS field to 001b
— b. Sets the ERROR_GOOD#_STS bit
— c. Sets the DONE_STS bit
— USB_ADDRESS_CNF
— USB_ENDPOINT_CNF
— TOKEN_PID_CNT[7:0]
— DATA_LEN_CNT
— WRITE_READ#_CNT (note: this will always be 0 for IN transactions)
— GO_CNT (note: this will always be 1 to initiate the transaction)
— SYNC
— TOKEN_PID_CNT field
— USB_ADDRESS_CNT field
— USB_ENDPOINT_CNT field
— 5-bit CRC field.
— The received PID is placed into the RECEIVED_PID_STS field
— Any subsequent bytes are placed into the DATA_BUFFER
— The DATA_LEN_CNT field is updated to show the number of bytes that were
— Resets the ERROR_GOOD#_STS bit
— Sets the DONE_STS bit
received after the PID.
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