Sony CXD2701Q Data Book page 140

SONY
CXD1160AP.-AQ
Points
in
Execution
Commands
Each
execution
command
with a
24
bit
word length can, widely speaking,
process
the following
in parallel.
RAM
address
setting,
MPY command
All
command,
transfer
command
and jump
command.
Specially through
MPY
command,
data
to
be handled
is
defined as single precision or
double
precision.
According
to
what the execution cycle
is
determined.
Data
register
and
data format
The
following
data
resgisters relate to
command
execution
Symbol
bit
R,'W
functions
I1H
16
R
Serial I/O
channel
1
input high
word
register
and iow
word
register
ML
16
R
I2H
16
R
Serial I/O
channel 2 input high
word
register
and low
word
register
I2L
16
R
01
H
16
RAW
Serial I/O
channel
1
output high
word
register
and
low
word
register
01
L 16
RAW
02H
16
RAW
Serial I/O
channel 2
output high
word
register
and
low
word
register
02L
16
aw
D1H
16
R
Delay
I/O input
high
word
register
and low word
register
D1L
16
R
DOH
16
W
Delay
I/O
output high
word
register
and low word
register
DOL
16
W
RH
16
W
High word
register
and low
word
register for
AU
operations
RL
16
W
P
33
—
Register
where
multiplication results
are entered
Ace
34
—
Register
where
AU
operation
results
are entered
AH
AL
16
16
R
R
High
word and
low
word from
the
32
bit
that
passed
Clipper
in
Ace
register
value
BSI
8SO
31
16
R
Barrel shutter input register
and
output register
From
the
above
commands
that
can execute
Read become
the
source
of
transfer of the transfer
command
through
the
main bus
or the
multiplicator input
data
of
MPY
command.
In
single precision (16b)
commands,
respective registers are
handled independently.
In
double
precision
commands
(32b) high
word
registers
and
low
word
registers
are handled
in
pairs.
At
power
ON
the respective registers
data value
become
indefinite.
136-