CHAPTER 14 SERIAL ARRAY UNIT
Page 354 of 920
14.5
Operation of 3-Wire Serial I/O (CSIp) Communication
This is a clocked communication function that uses three lines: serial clock (SCK) and serial data (SI and SO) lines.
[Data transmission/reception]
• Data length of 7 or 8 bits
• Phase control of transmit/receive data
• MSB/LSB first selectable
[Clock control]
• Master/slave selection
• Phase control of I/O clock
• Setting of transfer period by prescaler and internal counter of each channel
• Maximum transfer rate
During master communication:
Max. f
CLK
/4
During slave communication:
Max. f
MCK
/6
[Interrupt function]
• Transfer end interrupt/buffer empty interrupt
[Error detection flag]
• Overrun error
Note
Use the clocks within a range satisfying the SCK cycle time (t
KCY
) characteristics. For details, see
ELECTRICAL SPECIFICATIONS
.
Содержание RL78/G1H
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