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CHAPTER 14 SERIAL INTERFACE UART6
User’s Manual U19780EJ2V0UD
376
(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 signal generation sets this register to 16H.
Caution ASICL6 can be refreshed (the same value is written) by software during a communication
operation (when bits 7 and 6 (POWER6, TXE6) of ASIM6 = 1 or bits 7 and 5 (POWER6, RXE6) of
ASIM6 = 1). However, do not set both SBRT6 and SBTT6 to 1 by a refresh operation during SBF
reception (SBRT6 = 1) or SBF transmission (until INTST6 occurs since SBTT6 has been set (1)),
because it may re-trigger SBF reception or SBF transmission.
Figure 14-10. 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.