ak4115 AKM Semiconductor, Inc., ak4115 Datasheet - Page 20

• Manufacturer Part Number: ak4115
• Description: High Feature 192khz 24bit Digital Audio Interface Transceiver
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
The AK4115 can control and monitor block start, channel status bits, user bits and validity bit for RX and TX. B, C and
U pins are bi-directional and the direction of input/output can be selected by the BCU_IO bit. B, C, U and VOUT pins
become “L” (BCU_IO bit = “1”) in an unlocked state of Mode 2.
a. Serial mode & Except AES3 mode (P/SN pin = “L”, AES3 bit = “0”)
Note 23. Channel status bit for RX can be monitored by both C pin and CR191-0 bits.
Note 24. Validity bit for RX can be monitored by both VOUT pin and VRX bit.
Note 25. C pin and CT191-0 bits are ORed internally.
Note 26. VIN pin and VTX bit are ORed internally.
Note 27. When UDIT bit is “1”, the recovered U bits are used for DIT(DIR-DIT loop mode of U bit).
MS0573-E-00
Table 6. Block start, Channel Status bit, User bit and Validity bit in serial mode except AES3 mode (N/A: Not available)
ASYNC
Block start, Channel status bit, User bit and Validity bit
bit
0
1
BCU_IO
bit
0
1
0
1
(B pin)
Output
Output
Block
Input
Input
Start
CR191-0 bits
CR191-0 bits
CR191-0 bits
CR191-0 bits
(Note 23)
(Note 23)
Status bit
Channel
C pin
C pin
User bit
RX
U pin
U pin
N/A
N/A
- 20 -
VOUT pin
VOUT pin
VOUT pin
(Note 24)
(Note 24)
(Note 24)
VRX bit
VRX bit
VRX bit
VRX bit
Validity
bit
CT191-0 bits
CT191-0 bits
CT191-0 bits
CT191-0 bits
(Note 25)
(Note 25)
Status bit
Channel
C pin
C pin
(Note 27)
“0” data
“0” data
User bit
TX
U pin
U pin
All
All
(Note 26)
(Note 26)
(Note 26)
Validity
VIN pin
VTX bit
VIN pin
VTX bit
VIN pin
VTX bit
VTX bit
[AK4115]
bit
2006/12