CHAPTER 12 SERIAL INTERFACE UART6
Preliminary User’s Manual U16846EJ1V0UD
237
(6) Asynchronous serial interface control register 6 (ASICL6)
This register controls the serial communication operations of serial interface UART6.
ASICL6 can be set by a 1-bit or 8-bit memory manipulation instruction.
RESET input sets this register to 16H.
Caution ASICL6 can be refreshed (the same value is written) by software during a communication
operation (when bit 7 (POWER6) and bit 6 (TXE6) of ASIM6 = 1 or bit 7 (POWER6) and bit 5
(RXE6) of ASIM6 = 1). Note, however, that communication is started by the refresh operation
because bit 6 (SBRT6) of ASICL6 is cleared to 0 when communication is completed (when an
interrupt signal is generated).
Figure 12-10. Format of Asynchronous Serial Interface Control Register 6 (ASICL6) (1/2)
Address: FF58H After reset: 16H R/W
Note
Symbol
<7>
<6>
5 4 3 2 1 0
ASICL6 SBRF6 SBRT6 SBTT6 SBL62 SBL61 SBL60 DIR6 TXDLV6
SBRF6
SBF reception status flag
0
If POWER6 = 0 and RXE6 = 0 or if SBF reception has been completed correctly
1
SBF reception in progress
SBRT6
SBF reception trigger
0
−
1
SBF reception trigger
SBTT6
SBF transmission trigger
0
−
1
SBF transmission trigger
Note Bit 7 is read-only.