NEC 78014Y Series User Manual page 320

Differences of serial interface channel 0 are shown in Table 16-2.
Operation mode
3-wire serial I/O
mode
SBI mode
2-wire serial
mode
2
I C
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320
CHAPTER 16 SERIAL INTERFACE CHANNEL 0 ( µ PD78014Y Subseries)
Table 16-2. Difference of Serial Interface Channel 0 Mode
Used pin
SCK0, SO0 or • Input and output lines are independent and they can
SI0 transfer/receive at the same time, so the data transfer
processing time is fast.
• NEC single-chip microcontrollers provided as before.
SCK0, SB0 or • Enables configuration of serial bus with two signal
SB1 lines, thus, even when connected to some
microcontrollers, the number of ports can be cut and
wiring and routing on a board can be reduced.
• High-speed serial interface compliant with the
NEC standard bus format.
• Address and command information onto the serial bus
SCK0, SB0 or • Enables configuration of serial bus with two signal
SB1 lines, thus, even when connected to some
microcontrollers, the number of ports can be cut and
wiring and routing on a board can be reduced.
• Supports any data transfer format by program.
SCL, SDA0 or • Supports I
SDA1
Features
2
C bus format
Usage
Serial interface as is the
case with the 75X/XL,
78K and 17K series.
2
Application sets using I C
bus (such as TV, VCR,
and audio products)