AK09915D Datasheet, PDF (28/43 Pages) Asahi Kasei Microsystems – 3-axis Electronic Compass

[AK09915D]
10.2.4.High-speed Mode (Hs-mode)
AK09915D supports the Hs-mode.
Hs-mode can only commence after the following conditions (all of which are in Fast/Standard-mode):
 START condition (S)
 8-bit master code (00001XXX)
 not-acknowledge bit (Ā)
The diagram below shows data flow of the Hs-mode.
After start condition, feed master code 00001XXX for transfer to the Hs-mode. And then AK09915D feeds
back not-acknowledge bit and switch over to circuit for the Hs-mode between times t1 and tH. AK09915D can
communicate at the Hs-mode from next START condition. At time tFS, AK09915D switches its internal
circuit from the Hs-mode to the First mode with the STOP condition (P). This transfer completes in the bus
free time (tBUF).
Figure 10.12 Data transfer format in Hs-mode
Figure 10.13 Hs-mode transfer
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