AK2347B Datasheet, PDF (18/34 Pages) Asahi Kasei Microsystems – Two-way Radio Audio & Sub-Audio Processor

ASAHI KASEI
[AK2347B]
15. Register Function Description
1) Register configuration
Address
A3 A2 A1 A0
Function
0 0 0 0 Control register 1
0 0 0 1 Control register 2
0 0 1 0 Volume register 1
0 0 1 1 Volume register 2
0 1 0 0 Volume register 3
0 1 0 1 Volume register 4
0
1
1
0
Sub-Audio
frequency
0
1
1
1
Software-reset &
Revision register
1 ^{0/1 0/1 0/1} Reserved
D7
D6
D5
BS3
BS2
BS1
TC
EM PCONT
VR54 VR53 VR52
FILSW2 FILSW1 VR25
−
−
−
−
−
VR45
−
−
SA5
−
−
−
X
X
X
Data
D4
D3
D2
D1
TXRX TXSW2 TXSW1 RXSW
SPL SCSL LMT
HPF
VR51 VR50 VR12 VR11
VR24 VR23 VR22 VR21
−
VR33 VR32 VR31
VR44 VR43 VR42 VR41
SA4
SA3
SA2
SA1
RSTN
REVNUM[3:0]
X
X
X
X
D0
MCKSL
SASW
VR10
VR20
VR30
VR40
SA0
X
Note1) The mark “−” means that a write to those bits does not have any influence on the LSI
operation and read back the writing data.
Note2) All registers except address 0111 are write and readable registers.
Caution) Never access the mark “X” test register and unlisted bits of VR33 to VR30, VR45 to
VR40 and SA5 to SA1. If an access is made to these addresses inadvertently, the
LSI operation is not guaranteed.
MS1419-E-00
- 18 -
2012/05