ASAHI KASEI
[AK4115]
Bi-phase Output
The AK4115 has two transmitter outputs, TX0 and TX1. TX0 is a loop-through output that is selected from the RX input.
TX0 output is selected from RX7-0 by the OPS00, OPS01 and OPS02 bits. In parallel mode, the source of the
loop-through output from TX0 is fixed to RX0.
TX1 accepts output from RX7-0 or the transmitter (DIT; the data from DAUX is transformed to IEC60958 format.). TX1
also has a true RS422 line driver (differential output). The source of the loop-through output from TX1 is selected from
RX7-0 by the OPS10, OPS11 and OPS12 bits. When the DIT bit is set to “1”, TX1 is transmitted to DAUX data. In
parallel mode, TX1 is fixed to DIT.
OPS02
OPS01
OPS00
Output Data
RX0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Default
RX1
RX2
RX3
RX4
RX5
RX6
RX7
Table 21. Output Data Select for TX0
DIT
0
0
0
0
0
0
0
0
OPS12
OPS11
OPS10
Output Data
RX0
0
0
0
0
1
1
1
1
x
0
0
1
1
0
0
1
1
x
0
1
0
1
0
1
0
1
x
RX1
RX2
RX3
RX4
RX5
RX6
RX7
DAUX
1
Default
Table 22. Output Data Select for TX1
MS0573-E-00
2006/12
- 29 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
