SUPER MICRO Computer MIIC-203 User Manual

Page 40

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/Sab~7Ecd[CR]

‘Tilde embedded in ASCII Printable characters

/S12~0D24[CR]

‘Carriage Return embedded in ASCII Printable characters

Master Transmit Message
This command causes iPort/AFM to write the specified data bytes to the currently
selected Destination I

2

C Slave Address with or without generating an I

2

C Stop

condition after the last byte is transmitted.

Enter Message Bytes (0 or more Printable ASCII or Hex-equivalent ~00..~FF), then
Press Enter, ESCape to Cancel.

Note: The tilde (~) character and the Carriage Return (CR) character are used as
special marker characters within all iPort/AFM transmit text messages. These
characters may not be used within the text of a message, but must be replaced by the
following "Hex-equivalent" characters:

Tilde replaced by "~7E"
Carriage Return replaced by "~0D"

iPort/AFM automatically translates "Hex equivalent" characters to their single-byte
value for transmission across the I

2

C Bus.

All entered data bytes are transmitted to the Destination I

2

C Slave Receiver device.

Master Transmit stops upon receiving the first negative acknowledgment (Nack)
from the Slave Receiver. If not disabled, the message is then terminated with an I

2

C

Stop condition.

Sending Master Transmit messages with No Stop allows the Master to retain
exclusive control of the I

2

C Bus until it finally sends a Stop. During this time, the

Master can send additional (Repeated Start) Master Transmit or Master Receive
messages to the same or other I

2

C Slave devices.

Command: /(*)Ttext[CR] 'Master Transmit Message

(* = No Stop)

Response 1: /MTC[CR]

'Master Transmit Complete

Response 2: /SNA[CR]

'Slave Not Acknowledging

Response 3: /I81[CR]

'iPort/AFM is Busy, Command Ignored

Response 4: /I83[CR]

' I

2

C Arbitration Loss Detected

Response 5: /I88[CR]

'iPort Connection Not Open

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