CHAPTER 11 SERIAL INTERFACE UART6
User’s Manual U16898EJ3V0UD
184
Figure 11-5. Format of Asynchronous Serial Interface Operation Mode Register 6 (ASIM6) (2/2)
RXE6
Enabling/disabling
reception
0
Disable reception (synchronously reset the reception circuit).
1
Enable
reception
PS61
PS60
Transmission
operation Reception
operation
0
0
Parity bit not output.
Reception without parity
0
1
Output 0 parity.
Reception as 0 parity
Note
1
0
Output odd parity.
Judge as odd parity.
1
1
Output even parity.
Judge as even parity.
CL6
Specification of character length of transmit/receive data
0
Character length of data = 7 bits
1
Character length of data = 8 bits
SL6
Specification of number of stop bits of transmit data
0
Number of stop bits = 1
1
Number of stop bits = 2
ISRM6
Enabling/disabling occurrence of reception completion interrupt in case of error
0
“INTSRE6” occurs in case of error (at this time, INTSR6 does not occur).
1
“INTSR6” occurs in case of error (at this time, INTSRE6 does not occur).
Note
If “reception as 0 parity” is selected, the parity is not judged. Therefore, bit 2 (PE6) of asynchronous serial
interface reception error status register 6 (ASIS6) is not set and the error interrupt does not occur.
Cautions 1. At startup, set POWER6 to 1 and then set TXE6 to 1. To stop the operation, clear TXE6 to 0,
and then clear POWER6 to 0.
2. At startup, set POWER6 to 1 and then set RXE6 to 1. To stop the operation, clear RXE6 to 0,
and then clear POWER6 to 0.
3. Set POWER6 to 1 and then set RXE6 to 1 while a high level is input to the RxD6 pin. If
POWER6 is set to 1 and RXE6 is set to 1 while a low level is input, reception is started.
4. Clear the TXE6 and RXE6 bits to 0 before rewriting the PS61, PS60, and CL6 bits.
5. Fix the PS61 and PS60 bits to 0 when mounting the device on LIN.
6. Make sure that TXE6 = 0 when rewriting the SL6 bit. Reception is always performed with “the
number of stop bits = 1”, and therefore, is not affected by the set value of the SL6 bit.
7. Make sure that RXE6 = 0 when rewriting the ISRM6 bit.