USB IO HID Datasheet - Delcom Products Inc.

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Delcom Products Inc.USBIOHID DatasheetRevision 4 – 4/7/20096.4 Write CommandsThis section describes the USBIOHID write commands. There are currently twomajor commands (101 and102) for the write command/data functions. A majorcommand of 101 will send an 8 byte write command. A major command of 102 willsend a 16 byte write command. In the future we will add two more commands tosend 32 and 64 byte write commands. Note you can always send a higher numberof bytes of a write command, but not the opposite.MajorCmd = 101 – Send an 8 Byte write command.MajorCmd = 102 – Send an 16 Byte write command.6.4.1 Port Write FunctionsMinorCmd = 0Length = 8 or 16 BytesMinorCmd = 1LSBData = Port0ValueLength = 8 BytesMinorCmd = 2LSBData = Port1Length = 8 BytesMinorCmd = 3LSBData =ReadStrobeMSBData = Port1ValueLength = 8 BytesMinorCmd = 8LSBData = LSBWriteMSBData = MSBWriteLength = 8 BytesMinorCmd = 10LSBData = Port0ValueMSBData = Port1ValueLength = 8 BytesMinorCmd = 11LSBData = Port0ResetMSBData = Port0SetLength = 8 BytesMinorCmd = 12LSBData = Port1ResetMSBData = Port1SetLength = 8 BytesMinorCmd = 13LSBData = Port0DataMSBData = Port1Strobe0 - Test function. Writes the command/data packet to the devicecommand/data buffer. Uses for testing purposes, command doesnothing. The written command/data packet can be read with readcommands 101 or 102.1 – Write Port 0. Writes the LSB data to Port02 – Write Port 1. Writes the LSB data to Port13 – Setup Read Strobe. The LSB data value sets the read strobe pin tobe used in read commands 1 and 2. See read commands 1 and 2.8 – Setup 64bit Write 2Bytes Read 8bytes.. The LSB data value LSBwrite data and the MSB data value sets the MSB write data. See readcommand 1810 – Write both the port 0 and port 1 values. The LSB data is writtento Port0 and the MSB data is written to Port1.11 - Sets or resets the port 0 pins individually. The LSB resets thecorresponding port pin(s) and the MSB sets the corresponding portpin(s) on port 0. Resetting the port pin(s) takes precedence over settingthe bits.12 - Sets or resets the port 1 pins individually. The LSB resets thecorresponding port pin(s) and the MSB sets the corresponding portpin(s) on port 1. Resetting the port pin(s) takes precedence over settingthe bits.13 - Write strobe high function. This command writes the LSB to port0 and then toggles the corresponding pin marked in the MSB byte highthen low.USBIOHID.pdf Copyright © DELCOM PRODUCTS INC. 2009. All Rights Reserved. Page 14 of 34Delcom Products Inc. 200 William St STE302 – Port Chester NY 10573 USA (914)934-5170 www.delcomproducts.com
Delcom Products Inc.USBIOHID DatasheetRevision 4 – 4/7/2009Length = 8 BytesMinorCmd = 14LSBData = Port0DateMSBData = Port1StrobeLength = 8 BytesMinorCmd = 15LSBData = DelayMSBData = Port1StrobeExtData0..7 = DataBufferLength = 16 BytesMinorCmd = 16LSBData = DelayMSBData = Port1StrobeExtData0..7 = DataBufferLength = 16 BytesMinorCmd = 17ExtData0..7 = DataBufferLength = 16 Bytes14 - Write strobe low function. This command writes the LSB to port0 and then toggles the corresponding pin marked in the MSB byte lowthen high.15 - Write 8-byte strobe high function. This command writes the DataExtension data to port 0 and then toggles the corresponding pin marked in the MSB bytehigh then low and then delays for the specified time set in the LSB byte.16 - Write8-byte strobe low function. This command writes the DataExtension data to port 0 and then toggles the corresponding pin marked in the MSB bytelow then high and then delays for the specified time set in the LSB byte.17 - Write 64 Bit Command. This command writes 8 bytes of data tothe external hardware latches. The data is passed in the data extensionregisters. The LSB of the data extension is written to address zero. Thiscommand requires external hardware. See USB64BIO-Sch.pdf on ourwebsite.6.4.2 Port Clock FunctionsMinorCmd = 19LSBData = PrescalarLength = 8 BytesMinorCmd = 20LSBData = DisableMSBData = EnableLength = 8 BytesMinorCmd = 21LSBData = HighDutyMSBData = LowDutyLength = 8 BytesMinorCmd = 22LSBData = HighDutyMSBData = LowDutyLength = 8 BytesMinorCmd = 22LSBData = HighDutyMSBData = LowDutyLength = 8 BytesMinorCmd = 23LSBData = HighDutyMSBData = LowDutyLength = 8 BytesMinorCmd = 2519 - Loads the Clock Generator Global Prescalar value. This valueis passed in the LSB register. Increasing this number decreases all theclock function frequencies. Prescalar range is 1 to 255 and the boot updefault value is 10.20 - Enables or disables the clock generator on port 1. The lowernibble of the LSB disables the corresponding port pin(s) and the lowernibble of the MSB enables the corresponding port pin(s). Disabling theport pin(s) takes precedence over enabling.21 - Loads the frequency and duty cycle for port 1 pin 0. The LSBdata sets the high duty cycle and the MSB data sets the low duty cycleon port 1 pin 0.22 - Loads the frequency and duty cycle for port 1 pin 1. The LSBdata sets the high duty cycle and the MSB data sets the low duty cycleon port 1 pin 1.22 - Loads the frequency and duty cycle for port 1 pin 2. The LSBdata sets the high duty cycle and the MSB data sets the low duty cycleon port 1 pin 2.23 - Loads the frequency and duty cycle for port 1 pin 3. The LSBdata sets the high duty cycle and the MSB data sets the low duty cycleon port 1 pin 3.25 - Synchronizes the clock generation. This command synchronizesUSBIOHID.pdf Copyright © DELCOM PRODUCTS INC. 2009. All Rights Reserved. Page 15 of 34Delcom Products Inc. 200 William St STE302 – Port Chester NY 10573 USA (914)934-5170 www.delcomproducts.com
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