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The µ PD78014Y Subseries incorporates two channels of clock synchronous serial interfaces.
Differences between channels 0 and 1 are as follows (Refer to CHAPTER 17 SERIAL INTERFACE CHANNEL
1 for details of the serial interface channel 1) .
Serial Transfer Mode
3-wire serial I/O
SBI (serial bus interface)
2-wire serial I/O
2
I
C bus (Inter IC Bus)
Note
Can be set only when the main system clock oscillates at 4.19 MHz or less.
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CHAPTER 16 SERIAL INTERFACE CHANNEL 0 ( µ PD78014Y Subseries)
CHAPTER 16 SERIAL INTERFACE CHANNEL 0
Table 16-1. Differences between Channels 0 and 1
Clock selection
f
/2
2Note
, f
/2
X
X
Transfer method
MSB/LSB switchable as the start bit
Transfer end
Serial interface channel transfer end
flag
interrupt request flag (CSIIF0)
Use possible
( µ PD78014Y Subseries)
Channel 0
3
, f
/2
4
, f
/2
5
, f
/2
6
, f
/2
7
, f
/2
8
, f
X
X
X
X
X
X
Channel 1
/2
9
external clock, TO2 output clock
MSB/LSB switchable as the start bit
Automatic transmit/receive function
Serial interface channel transfer end
interrupt request flag (CSIIF1 and TRF)
None
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