AKM Confidential
AK2571
CSN must be set for each instruction. It cannot be used continuously.
Digital I/F can connect directly to a SPI interface In this case, set (CPOL, CPHA) = (0, 0) or (1, 1).
(CPOL, CPHA) = (0, 0) : Status output through DO pin
(CPOL, CPHA) = (1, 1) : Status output disable
1.1 Register access [READ] mode
（
RDREG)
High-Z
1 2 3 4 5 6 7 8 11 12 17 18 27 28 29 30 31 32
SK
CSN
0 1 0 1 1 A5 A4 A3 A0 x
DI
D15 D14 D13 D3 D2 D1 D0
DO
1.2 Register access [WRITE] mode
（
WRREG
）
0 1 0 1 0 A5 A4 A3 A0 x x D15 D4 D3 D2 D1 D0
1 2 3 4 5 6 7 8 11 12 16 17 27 28 29 30 31 32
SK
CSN
DI
<Rev. 0.6E Preliminary> -38-
2001/11
