AK7746 Datasheet, PDF (28/62 Pages) Asahi Kasei Microsystems – Audio DSP with 5-channel 24-bit ADC and Input Mux

[ASAHI KASEI]
3) CONT2 : Conditional jump, instruction setting. ( See 3. Block diagram )
[AK7746]
Recommend changing this register at the system reset state ( S_RESET =”L”).
Command
Code
WR
64h 74h
Name
CONT2
D7
JX2_E
D6
JX1_E
D5
JX0_E
D4
SSDIN4
D3
SSDIN3
D2
SWQMD
D1
D0
TEST
×
c D7 : JX2_E (See. 3. Block diagram )
0: Normal operation (SDIN4)
1: JX2 is enable. (SDIN4 can not be read)
d D6 : JX1_E (See. 3. Block diagram )
0: Normal operation (SDIN3)
1: JX1 is enable. (SDIN3 can not be read)
e D5 : JX0_E (See. 3. Block diagram )
0: Normal operation (SDIN1)
1: JX0 is enable. (SDIN1 can not be read)
f D4 : SSDIN4 DSP instruction select.
0: ODRB and MSRG are enabled (@SWSDIN4_N=0) / INL4 and MSRG are enabled (@SWSDIN4_N=1)
1: INL4 and INR4 (Digital input of SDIN4 ) are enabled.
SSDIN4
0
0
1
SWSDIN4_N
(CONT4 D6)
0
1
×
SRC field
ODRB
INL4
INL4
SRC field
MSRG
MSRG
INR4
g D3 : SSDIN3 DSP insturuction select
0: TDR2 and TDR3 (DR2 and DR3 through output ) are enabled
1: INL3 and INR3 ( Digital input of SDIN3 ) are enabled.
When SRC data loads to DBUS, TDR2 and TDR3 data is changed to INL3 and INR3 data.
h D2 : SWQMD (See 3. Block diagram )
0: Normal operation
1: The digital output of ADCM connects to SDOUT4.
i D1 : TEST
0: Normal operation
1: TEST MODE ( Do NOT use this.)
j D0 : Always input 0
Note) Underlines of the c~i mean default setting.
Default
000 000X
[MS0369-E00]
- 28 -
2004/12