Garmin APOLLO GX SERIES, Service Manual

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Garmin AT Rev --
© 2004 Garmin AT GX Service Manual 9-7
EEPROM Data
The GX50/60 includes an EEPROM device on the main NAV computer board. During normal
operation, several items useful for system debug and performance monitoring are logged into
EEPROM. Some of those items are listed in the following table.
Address Bytes Data Type Description Comment
0219 4 Hexadecimal Equipment run time in hours 0219 is 1s byte
0224 4 Hexadecimal Turn on cycle count, increments by one
each time the unit is reset (or turned on) 0224 is 1s byte
0229 1 Hexadecimal EEPROM failures, checked each time unit
is turned on
0230 1 Hexadecimal NVRAM failures, checked each time unit is
turned on
0231 1 Hexadecimal Minor math error count
0232 1 Hexadecimal Major math error count
0233 1 Hexadecimal Exception interrupt error count
0234 1 Flag Map task time-out
0235 1 Flag User interface time-out
0236 1 Flag NAV SW time-out
Note:
The EEPROM data listed in this table will be reset to 0x00 when a serial number is input using
the RS-232 serial number input command.