DLP-245PA DLP Design Inc, DLP-245PA Datasheet - Page 8

• Manufacturer Part Number: DLP-245PA
• Description: Interface Modules & Development Tools USB/Micro Dev Board
• Manufacturer: DLP Design Inc

Specifications of DLP-245PA

• Interface Type: USB
• Data Bus Width: 8 bit
• Operating Supply Voltage: 5 V
• Product: Interface Modules
• For Use With/related Products: 16F872
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

0xA8 – Setup A/D
Parameters:
Returns:
Function:
Example:
0xA9 – A/D Conversion
Parameters:
Returns:
Function:
Example:
0xAA – EEPROM Read
Parameters:
Returns:
Function:
Example:
Port Configuration – Selects analog port configuration. (See command 0xA8 in
the example firmware for options.)
A/D Conversion Clock – Select the source for the A/D conversion clock. (See
command 0xA8 in the example firmware for options.)
Undefined
This function will select the source for the A/D conversion clock. (Refer to the
datasheet for the 16F872 for a detailed explanation of the conversion clock.)
0x3, 0xA8, 0x89, 0x81, 0xA3 – Sets all available A/D inputs on the DLP-245PA to
analog mode (0x89) and selects Fosc/32 for 20MHz operation (0x81).
Analog Port Number – Selects the analog port for the A/D conversion.
2 Bytes: The 10-bit voltage data; LSB first.
This function will set the channel for the A/D conversion, pause 10uS, perform
the A/D conversion, and then return 2 bytes to the host (LSB first). Command
0xA8 must have been previously called to configure the desired analog channel
as an A/D input.
0x2, 0xA9, 0x2, 0xA8 – Selects analog channel 2 (AN2), performs the A/D
conversion, and returns 2 bytes of data.
Address – Selects the zero-based address of the location in the 16F872’s
internal EEPROM for reading.
1 Byte: The byte of data read from the EEPROM.
This function will read the selected location in the 16F872’s internal EEPROM.
0x2, 0xAA, 0x2, 0xAA – Reads EEPROM Address 2, and returns a single byte of
data.
8