Apple A7 Teardown Schritt Nr.9 Verlauf

Änderungen an Schritt Nr. 9

Bearbeitet von Andrew Optimus Goldheart – 23. Sep 2013

Bearbeitung genehmigt von Andrew Optimus Goldheart

-	[* black] So the M7 is tasked with reading and processing data from three sensors, and with Chipworks' help we found ~~this~~ too:
+	[* black] So the M7 is tasked with reading and processing data from three sensors, and with Chipworks' help we found these too:
	[* black] Bosch Sensortech BMA220 3-axis accelerometer.
	[* black] STMicroelectronics 3-axis gyroscope.
	[* black] AKM’s AK8963 3-axis electronic compass IC.
+	[* icon_note] The M7's job is to read and process data from the accelerometer, gyroscope, and magnetometer, to produce an absolute orientation of the phone relative to the world. This data is then passed to the A7 in a neat package, probably in the form of 3 headings (roll, pitch, and yaw).
+	[* black] Using the A7 to monitor this sort of data is mega-overkill, so the M7 was introduced to maintain a constant, low-power watch over these sensors.