Firmware 4017

4017Q (25-Mar-2005)
Rev Q eliminates need for the SIOSelectOption() function. It works with GCP and GCX, is backward compatible with all CE builds. It is required when using ADSmartIO functions on GCX CE builds 4.20.07 and later.
- Power-up default is equivalent of SIOSelectOption(3) (all set as digital inputs)
- Use SetKeypadSize() to enable keypad scan (SIOSelectOption(1) not needed)
- Call SIOAnalogConversion() to read A/Ds (Port A) (SIOSelectOption(2) not needed)
Previous ADSmartIO firmware versions did not allow Port A writes when Option 2 (A/D) was selected; rev Q no longer performs this check.

4017P (13-Feb-2004)
- Keypad driver supports repeating keys
- Keypad driver allows unused keypad lines to be used as GPIOs

4017N (10-Jun-2003)
- I2C driver supports polling mode

4017M (9-May-2003)
- Initial Vee PWM value changed from 255 to 140 (0x8C)

4017L (12-Jul-2002)
- Adds I2C driver

4017K (20-Mar-2002)
- Change initial Vee PWM value from 15 to 255 (0xFF)

4017J (10-Jul-2001; rebuilt 23-Jan-02)
- PS2 keybard interface: Passes all data through to OS (supports all scan codes)