AK4683_07 Datasheet, PDF (34/84 Pages) Asahi Kasei Microsystems – Asynchronous Multi-Channel Audio CODEC with DIR/T

[AK4683]
2. Setting for the PORTB
2-1: Normal mode:
The PORTB supports only the normal mode. The DIFB1-0 bits select following eight serial data format (Table 34).
Mode
0
1
2
3
4
5
6
7
Master
/slave
DIFB1 DIFB0 SDTOB
SDTIB
LRCKB
I/O
BICKB
I/O
Slave
0
0
24bit, L J 20bit, R J H/L I ≥ 48fs I
Slave
0
1
24bit, L J 24bit, R J H/L I ≥ 48fs I
Slave
1
0
24bit, L J 24bit, L J H/L I ≥ 48fs I
Slave
1
1
24bit, I²S 24bit, I²S L/H I ≥ 48fs I
Master
0
0
24bit, L J 20bit, R J H/L O 64fs O
Master
0
1
24bit, L J 24bit, R J H/L O 64fs O
Master
1
0
24bit, L J 24bit, L J H/L O 64fs O
Master
1
1
24bit, I²S 24bit, I²S L/H O 64fs O
Table 34. Audio Interface Format (Normal mode, L J: Left justified, R J: Right justified.)
(default)
LRCK
01 2
BICK (64fs)
12 13 14
24 25
SDTO(o)
23 22
12 11 10
0
31 0 1 2
12 13 14
24 25
23 22
12 11 10
0
31 0 1
23
SDTI(i)
Don’t Care 19 18 8 7
10
SDTO-23:MSB, 0:LSB; SDTI-19:MSB, 0:LSB
Lch Data
Don’t Care
19 18
87
Rch Data
10
Figure 8. Mode 0,4 Timing
LRCK
01 2
BICK (64fs)
8 9 10
24 25
SDTO(o)
23 22
16 15 14
0
31 0 1 2
8 9 10
24 25
23 22
16 15 14
0
31 0 1
23
SDTI(i)
Don’t Care 23 22
87
23:MSB, 0:LSB
Lch Data
1 0 Don’t Care 23 22
87
Rch Data
10
Figure 9. Mode 1 ,5 Timing
LRCK
0 1 2 21 22 23 24
BICK (64fs)
SDTO(o)
23 22
210
28 29 30 31 0 1 2
22 23 24
23 22
2 10
28 29 30 31 0 1
23
SDTI(i)
23 22
2 1 0 Don’t Care
23 22
2 1 0 Don’t Care
23
23:MSB, 0:LSB
Lch Data
Rch Data
Figure 10.Mode 2,6 Timing
MS0427-E-02
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2007/04