upd78f0114hgb-8es-a Renesas Electronics Corporation., upd78f0114hgb-8es-a Datasheet - Page 277

• Manufacturer Part Number: upd78f0114hgb-8es-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

(6) Asynchronous serial interface control register 6 (ASICL6)
Address: FF58H After reset: 16H R/W
ASICL6
Note Bit 7 is read-only.
Symbol
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
Figure 13-10. Format of Asynchronous Serial Interface Control Register 6 (ASICL6) (1/2)
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). However, do not set both SBRT6 and SBTT6 to 1 by a refresh
operation during SBF reception (SBRT6 = 1) or SBF transmission (until INST6 occurs since
SBTT6 has been set (1) ), because it may re-trigger SBF reception or SBF transmission.
SBRF6
SBRF6
SBRT6
SBTT6
<7>
0
1
0
1
0
1
If POWER6 = 0 and RXE6 = 0 or if SBF reception has been completed correctly
SBF reception in progress
SBF reception trigger
SBF transmission trigger
SBRT6
<6>
Note
CHAPTER 13 SERIAL INTERFACE UART6
SBTT6
5
User’s Manual U16961EJ4V0UD
SBL62
4
SBF reception status flag
SBF transmission trigger
SBF reception trigger
SBL61
3
SBL60
2
DIR6
1
TXDLV6
0
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