The following errors cause bit 3 in the ESR register to be set.
| Error code | Explanation |
| -300 | Device-specific error |
| -310 | System error
An unspecified system error has occurred. |
| -311 | Memory error
An error was detected in the device's memory. |
| -313 | Calibration memory lost
Nonvolatile calibration data have been lost. |
| -314 | Save/recall memory lost
Nonvolatile saved data have been lost. |
| -315 | Configuration memory lost
Nonvolatile configuration data saved by the device have been lost. |
| -330 | Self-test failed
An error occurred during the internal self test. |
| -350 | Queue overflow
Error code entered in the queue in lieu of the code when the queue is full. It indicates that an error occurred but was not recorded in the queue. The original error message is lost. |
| -360 | Communication error
An unspecified communication error was detected. |
| -361 | Parity error in program message
Parity bit was not correct when data were received on a serial port. |
| -362 | Framing error in program message
No stop bit was detected when data were received on a serial port. |
| -363 | Input buffer overrun
Software or hardware input buffer on serial port overflows with data caused by improper or nonexistent pacing. |