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CHAPTER 15 UART1
Figure 15.6-10 Example of Master/Slave Mode Communication Connect for UART1
Master CPU
G
Function selection
At master/slave type communication, select the operation mode and data transfer type.
Since the parity check function cannot be used in operation mode 1 (asynchronous multiprocessor mode),
set the parity add enable bit (SCR1 register bit 15: PEN) to 0.
Table 15.6-3 Selection of Master/Slave Communication Function
Address
transmit/
receive
Data
transmit/
receive
472
SOT1
SIN1
SOT
SIN
Slave CPU #0
Operating mode
Master
Slave
CPU
CPU
Operation
-
mode 1
SOT
SIN
Slave CPU #1
Data
Parity
A/D="1"
+
8-bit address
None
A/D="0"
+
8-bit data
Synchro
nous
Stop Bit
type
Asynchro
1 bit or 2
nous
bits
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