AK7712A-VT Datasheet, PDF (32/87 Pages) Asahi Kasei Microsystems – Built-in 20-bit ADC/DAC Sophisticated Audio DSP

ASAHI KASEI
[AK7712A-VT]
3) Shift Calculation
The shift has two sources of multiplier output and DBUS. In the case of shortage of data length, MSB side is
extended the highest bit, LSB side is put in 0 to output 34-bits data. The shift commands which shift the data
0/1/2/3/4/6/8/15 bits to right/left, and the indirect shift command @SHR are prepared. On using the command (BH**)
which shift the DBUS data, you can use only CRAM and DRAM data for multiplication input at the same line. The
indirect shift command is carried out in 1 step, taking priority of shift field command. The Timing of shift command is
showed below.
0180-E-02
- 32 -
1997/12