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MN002000A © 2004 Navman NZ Ltd. All rights reserved. Proprietary information and specifications subject to change without notice.
Message ID: 1303
Rate: as required (maximum rate approximately 0.2 Hz)
Message length: 8 words
Word No. Name Type Units Range Resolution
1-4 Message header
5 Header checksum
6 Sequence number (Note 1) I 0 to 32 767
Invalidation control (7.0-7.15)
7.0 Invalidate RAM (Note 2) Bit 0 to 1
7.1 Invalidate EEPROM (Note 3) Bit 0 to 1
7.2 Invalidate RTC (Note 4) Bit 0 to 1
7.3-7.14 Reserved
7.15 Force cold start (Note 5) Bit 0 to 1
8 Data checksum
Note 1: the sequence number is a count that indicates whether the data in a particular binary message has been updated or
changed since the last message input.
Note 2: 1 = invalidate all RAM address space before restart
Note 3: 1 = invalidate all data in the EEPROM device (if present) before restart
Note 4: 1 = invalidate all data in the RTC device (if present) before restart
Note 5: 1 = force a cold start reset by clearing RAM and ignoring, but not clearing, the stored position in EEPROM. This provides
cold start testing with the valid time. If cold start testing without time is desired, then the invalidate RTC bit (7.2) should also be set.
Table 3-35 Message 1303 (restart command)
3.5.2.13 Message 1303 (restart command).
This message commands a full restart each time it
is received.
The contents of the ‘restart command’ message
are described in Table 3-35.