Datasheet

Section 10 Serial Communication Interface
Rev. 8.00 Mar. 09, 2010 Page 341 of 658
REJ09B0042-0800
Bit 3—Stop Bit Length (STOP)
Bit 3 selects 1 bit or 2 bits as the stop bit length in asynchronous mode. The STOP bit setting is
only valid in asynchronous mode. When synchronous mode is selected the STOP bit setting is
invalid since stop bits are not added.
Bit 3
STOP Description
0 1 stop bit
*
1
(initial value)
1 2 stop bits
*
2
Notes: 1. In transmission, a single 1 bit (stop bit) is added at the end of a transmit character.
2. In transmission, two 1 bits (stop bits) are added at the end of a transmit character.
In reception, only the first of the received stop bits is checked, irrespective of the STOP bit setting.
If the second stop bit is 1 it is treated as a stop bit, but if 0, it is treated as the start bit of the next
transmit character.
Bit 2—5 Bit Communication (MP)
When this bit is one, the format of 5 bits communication becomes possible.
In the case of writing 1 to this bit, bit 5 (PE) should be written with 1 all at once.
Bit 2
MP Description
0 5 bit communication disabled (initial value)
1 5 bit communication enabled