Appendix G
8-Bit Intel Hex File Format
The 8-bit Intel hex file format is a printable ASCII format consisting of one or more data records followed by an end-of-file record. Each record consists of one line of information. Data records may appear in any order. Address and data values are represented by 2 or 4 hexadecimal digits.
Record Format
: LL AAAA RR DDDD… … DDDD cc (spaces included for better readability)
| Character | Description |
| LL | Length field. Number of data bytes. |
| AAAA | Address field. Address of first byte. |
| RR | Record type field. 00 for data and 01 for end of record. |
| DD | Data field. |
| CC | Checksum field. One’s complement of length, address, record type, and data fields modulo 256. |
Example
:06 0100 00 010203040506 E4 (spaces ...
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