ak4566vn AKM Semiconductor, Inc., ak4566vn Datasheet - Page 26

• Manufacturer Part Number: ak4566vn
• Description: 20bit Stereo Codec With Built-in Ipga & Hp-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
n Serial Control Interface
Internal registers may be written to the 3 wire µP interface pins (CSN, CCLK and CDTI). The data on this interface
consists of Chip address (2bits, Fixed to “10”), Read/Write (1bit, Fixed to “1”, Write only), Register address (MSB first,
5bits) and Control data (MSB first, 8bits). Address and data is clocked in on the rising edge of CCLK. For write operations,
data is latched after a low-to-high transition of CSN. The clock speed of CCLK is 5MHz(max). The value of internal
registers is initialized at PDN= “L”.
REV 0.5
CCLK
CSN
CDTI
C1
0
C0
1
R/W
2
C1-C0: Chip Address (Fixed to “10”)
R/W: Read/Write (Fixed to “1” : Write only)
A4-A0: Register Address
D7-D0: Control Data
A4
3
Figure 21. Control Interface
AKM CONFIDENTIAL
A3
4
A2
5
A1
6
A0
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7
D7
8
D6
9
D5
10 11 12 13 14 15
D4
D3
D2
D1
D0
[AK4566]
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