
26
μ
PD78052, 78053, 78054, 78055, 78056, 78058
n
m
x
= 0, 1
= 4, 5
= 1, 2
5.8
Serial Interfaces
3 channels of the clocked serial interface are incorporated.
Serifal interface channel 0
Serifal interface channel 1
Serifal interface channel 2
Table 5-3. Types and Functions of Serial Interface
5.7
D/A Converter
A D/A converter of 8-bit resolution
×
2 channels is available.
Conversion method is R-2R resistor ladder method.
Figure 5-9. D/A Converter Block Diagram
Function
Serial Interface Channel 0
Serial Interface Channel 1
Serial Interface Channel 2
3-wire serial I/O made
(MSB/LSB first switchable)
(MSB/LSB first switchable)
(MSB/LSB first switchable)
3-wire serial I/O mode with auto-
matic transmit/receive function
—
(MSB/LSB first switchable)
—
SBI (serial bus interface) mode
(MSB first)
—
—
2-wire serial I/O mode
(MSB first)
—
—
3-wire serial I/O mode with auto-
matic transmit/receive function
—
—
(Dedicated baud rate
generator incorporated)
Internal Bus
Selector
D/A Conversion Value Set Register n
(DACSn)
AV
REF1
AV
SS
DAMm
INTTM
X
DACSn
Write
ANOn
D/A Converter
Mode Register