Datasheet

AVR068

2591C-AVR-06/06

5.7 Parameters

The following parameters can be read and/or written by the CMD_GET_PARAM and

CMD_SET_PARAM commands:

Table 5-73. Available parameters

Value Meaning R/W

PARAM_BUILD_NUMBER_LOW Firmware build number, high byte R

PARAM_BUILD_NUMBER_HIGH Firmware build number, low byte R

PARAM_HW_VER Hardware version R

PARAM_SW_MAJOR Firmware version number, major byte R

PARAM_SW_MINOR Firmware version number, minor byte R

PARAM_VTARGET Target Voltage RW

PARAM_VADJUST Adjustable (AREF) voltage RW

PARAM_OSC_PSCALE Oscillator timer prescaler value RW

PARAM_OSC_CMATCH Oscillator timer compare match value RW

PARAM_SCK_DURATION ISP SCK duration RW

PARAM_TOPCARD_DETECT Top card detect R

PARAM_STATUS Returns status register R

PARAM_DATA DATA pins values used in HVPP mode R

PARAM_RESET_POLARITY Active low or active high RESET handling W

PARAM_CONTROLLER_INIT Controller initialization RW

5.7.1 PARAM_BUILD_NUMBER_LOW

The PARAM_BUILD_NUMBER_LOW and PARAM_BUILD_NUMBER_HIGH together

return a number that is incremented for each build of the firmware. Mainly for ATMEL

internal use.

5.7.2 PARAM_BUILD_NUMBER_HIGH

See

PARAM_BUILD_NUMBER_LOW.

5.7.3 PARAM_HW_VER

Returns a hardware revision number.

5.7.4 PARAM_SW_MAJOR

The PARAM_SW_MAJOR and PARAM_SW_MINOR returns the firmware version.

5.7.5 PARAM_SW_MINOR

See

PARAM_SW_MAJOR.