Application of interfaces without data handling blocks Manual BG41/BG42/BG43
4-88 Rev. 99/49
4.2.4 Acknowledgement and error code
Acknowledgement
The commands 4 and 5 are confirmed by an acknowledgement, which must be received over the
data register of channel 0. The acknowledgement consists of two bytes. In the first byte the
command and the channel number are repeated.
Fig. 4-17: Acknowledgement byte 1
Error code
The second byte contains an error code, which enables an exact error analysis. If the sescond byte is
0, no error has arisen.
Fig. 4-18: Acknowledgement byte 2
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