HA13566AF Datasheet, PDF (4/20 Pages) Hitachi Semiconductor – Combo (Spindle & VCM) Driver

HA13566AF
Serial Port
Construction
SERENAB
CLK
DATA
Serial
port
A0
Data construction
Input Data Construction
D0 to D9
Decoder
MD0 to MD9
Mode Control Register
A0 = 1
DD0 to DD9
Input Data Register
for DAC & VCM
A0 = 0
Mode Control
VCM Control
Figure 1 Serial Port
MSB
LSB
A0 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
for selecting
register
Register Data
Figure 2 Input Data (1)
The serial port is required the 11 bit data (D0 to D9 and A0). Address bit A0 is used to select the register
as follows. When the data length is less than 11 bits, the internal register will not be up dated. And when
the data length is more than 11 bits, this register will take late 10 bits and ignore the faster bit.
A0
Register
0
Input data register of DAC & VCMGAIN
1
Mode control register
4