DLP-2232PB DLP Design Inc, DLP-2232PB Datasheet - Page 11

• Manufacturer Part Number: DLP-2232PB
• Description: Interface Modules & Development Tools 50P-DIP USB-FIFO Module
• Manufacturer: DLP Design Inc

Specifications of DLP-2232PB

• Interface Type: USB
• Data Bus Width: 8 bit
• Operating Supply Voltage: 5 V
• Product: Interface Modules
• For Use With/related Products: 16F877A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

0xAE – Reserved
0xAF – Loopback
Parameters:
Returns:
Function:
Example:
0x55 – Port A Read
0x59 – Port C Read
0x5B – Port D Read
Parameters:
Returns:
Function:
Example:
0x56 – Port A Write
0x5A – Port C Write
0x5C – Port D Write
Parameters:
Returns:
Function:
Example:
V1.1
Data byte – The byte of data to be looped back to the host.
1 Byte: The data byte written.
This function will echo the specified byte of data back to the host. The port pins
are not affected.
0x2, 0xAF, 0x12, 0xBF – Requests the data byte 0x12 to be echoed back to the
host.
None
1 Byte: The 8-bit data read from the selected port.
This function will read the specified 8-bit port and return the results to the host.
The port is automatically configured as an input port. Port A must be configured
for digital I/O (command 0xA8) prior to using this command.
0x1, 0x5B, 0x5A – Requests a read from the 8-bit data bus Port D.
Data byte – The byte of data to be written to the 8-bit port.
Undefined
This function will write the specified data byte to the 8-pit port. Data is latched on
the port pins until changed by another command. The port is automatically
configured as an output port. Port A must be configured for digital I/O (command
0xA8) prior to using this command.
0x2, 0x5C, 0x12, 0xBF – Writes the data byte 0x12 to the 8-bit data bus Port D.
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July 2004