Specifications

Touch Controllers Reference Guide80

Note:

If your controller does not support the Unit Type command,

you can use the Unit Type Verify command or the Output Identity and

Output Status commands to obtain information about the controller

type, the firmware revision, and the hardware status.

Table 12. Bit Definition for the Unit Type Command

Bit Serial/SMT3 Status TouchPen Status

0 Reserved. RAM error. Hardware

malfunction.

1 ROM error. Firmware checksum

verification error.

Same.

2 PWM error. Unable to establish

PWM operating range at power-up.

Nonrecoverable error.

Analog-to-digital (A/D) error.

The A/D converter malfunctioned.

3 NOVRAM error. The operating

parameters in the controller

NOVRAM are invalid. Using defaults.

Same.

4 HDW error. The controller hardware

failed (unable to initialize or configure

gate array). Nonrecoverable error.

ASIC error. The Application

Specific Integrated Circuit (ASIC)

failed.

5 Reserved. Reset flag.

1 = A Unit Type command has

not been issued since the last reset.

0 = A Unit Type command has

been issued since the last reset.

Cable NOVRAM error

. The

linearization data in the cable

NOVRAM is invalid.

Reserved.

7 NOVRAM2 error. The linearization

data in the controller NOVRAM is

invalid.

Same.

1. The cable NOVRAM error will flash the LED until the controller receives the

first valid command from the host.