ak4564 AKM Semiconductor, Inc., ak4564 Datasheet - Page 31

• Manufacturer Part Number: ak4564
• Description: 16bit Codec With Built-in Alc And Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
n Control Register WRITE Timing
The data on the 3 wires serial interface consists of op-code (3bit), address (MSB-first, 5bit) and control data (MSB-first,
8bit). The transmitting data is output to each bit by “ ” of CCLK, the receiving data is latched by “ ” of CCLK. Writing
data becomes effective by “ ” of CSN.
CCLK always needs 16 edges of “ ” during CSN = “L”. PDN pin = “L” resets the registers to their
defalut values.Only write to address 00H to 0CH. Writing to the control registers except for op2-0 bit
=“101” are ignored.
MS0140-E-01
CSN
CCLK
CDTI
op2-op0: Op code (101:WRITE)
A4-A0:
D7-D0:
op2 op1
“1”
0
“0”
1
op0
“1”
2
Register Address
Control data
A4
Figure 25. Control Data Timing
3
A3
4
A2
5
A1 A0
6
- 31 -
7
D7 D6 D5 D4 D3 D2 D1 D0
8
9
10 11 12 13 14 15
[AK4564]
2002/07