AK7712A-VT Datasheet, PDF (70/87 Pages) Asahi Kasei Microsystems – Built-in 20-bit ADC/DAC Sophisticated Audio DSP

ASAHI KASEI
[AK7712A-VT]
[ Table 1 ]
Bit name
Function
C23
External RAM data length selection
1: 4-bit, 0: 8-bit(default value)
C22
External RAM selection (C22,C21,C20) = (0,0,0): SRAM (default value)
C21
(0,1,0): Pseudo SRAM(static column mode)
C20
(0,1,1): Pseudo SRAM(normal mode)
(1,0,0): DRAM 256K
(1,0,1): DRAM 1M(use as 512K)
C19
Data reset function selection after reset
1: not use, 0: use(default value)
C18
Addressing method selection of DRAM
0: Ring addressing (default value)
1: Linear addressing
C17
BCLK selection
(C17,C16) =
(0,0): 64fs(default value)
C16
Effective only slave mode
(0,1): 32fs
(1,0): 48fs
C15
SDIN1 interface selection (C15,C14) = (0,0): MSB justified 16-bit 32/48/64fs
C14
(0,1): MSB justified 24-bit 48/64fs
(1,0): LSB justified 16-bit 48/64fs
(1,1): LSB justified 24-bit 64fs
C13
SDOUT1 interface selection (C13,C12) = (0,0): MSB justified 16-bit 32/48/64fs
C12
(0,1): MSB justified 24-bit 48/64fs
(1,0): LSB justified 16-bit 48/64fs
(0,0): (default value)
C11
SDIN2 interface selection
0: MSB justified 20-bit 48/64fs
1: MSB justified 16-bit 32/48/64fs
0: (default value)
C10
SDOUT2 interface selection
0: MSB justified 20-bit 48/64fs
1: MSB justified 16-bit 32/48/64fs
0: (default value)
C9
Reserve/ Test
(C9,C8) =
(0,0): (default value)
note 1)
C8
C7
Reserve/ Test
0: (defaul value)
note 1)
C6
ADC HPF selection
1: not use, 0: use(default value)
C5
Pink Noise Generation
0: (default value) 1: use
C4
Reserve/ Test
0: (default value)
note 1)
C3
Master clock selection
(C3,C2) = (0,1): (default value)
C2
XTI
DSP fs
Max clock
(0,0): 384fs
384fs 48/44.1/32kHz 18.432MHz
(0,1): 256
256
48/44.1/32
12.288MHz
(1,0): 512
512
32
16.384MHz
(1,1): 576
576
32
18.432MHz
C1
Reserve/ Test
0: (default value)
note 1)
C0
Reserve/ Test
0: (default value)
note 1)
* Other codes except for this table are reserved. Do not use these reserved codes.
note 1) Do not change the reserve/ test as it may be used for test. It may become the cause of irregular action.
0180-E-02
- 70 -
1997/12