UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 400

• Manufacturer Part Number: UPD78F0838
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

398
Cautions 1. In the case of an SBF reception error, the mode returns to the SBF reception mode. The
TXDLV61
Figure 12-18. Format of Asynchronous Serial Interface Control Register 61 (ASICL61) (2/2)
SBL621
DIR61
1
1
1
0
0
0
0
1
0
1
0
1
2. Before setting the SBRT61 bit, make sure that bit 7 (POWER61) and bit 5 (RXE61) of ASIM61 =
3. The read value of the SBRT61 bit is always 0. SBRT61 is automatically cleared to 0 after SBF
4. Before setting the SBTT61 bit to 1, make sure that bit 7 (POWER61) and bit 6 (TXE61) of
5. The read value of the SBTT61 bit is always 0. SBTT61 is automatically cleared to 0 at the end
6. Do not set the SBRT61 bit to 1 during reception, and do not set the SBTT61 bit to 1 during
7. Before rewriting the DIR61 and TXDLV61 bits, clear the TXE61 and RXE61 bits to 0.
8. When the TXDLV61 bit is set to 1 (inverted TxD61 output), the TxD61/SCK10/P10/INTP4 pin
status of the SBRF61 flag is held (1).
1. After setting the SBRT61 bit to 1, do not clear it to 0 before SBF reception is completed
(before an interrupt request signal is generated).
reception has been correctly completed.
ASIM61 = 1. After setting the SBTT61 bit to 1, do not clear it to 0 before SBF transmission is
completed (before an interrupt request signal is generated).
of SBF transmission.
transmission.
cannot be used as a general-purpose port, regardless of the settings of POWER61 and TXE61.
When using the TxD61/SCK10/P10/INTP4 pin as a general-purpose port, clear the TXDLV61
bit to 0 (normal TxD61 output).
MSB
LSB
Normal output of T
Inverted output of T
SBL611
0
1
1
0
0
1
1
0
CHAPTER 12 SERIAL INTERFACES UART60 AND UART61
SBL601
X
X
D6n
1
0
1
0
1
0
1
0
D6n
Preliminary User’s Manual U19748EJ1V0UD
SBF is output with 13-bit length.
SBF is output with 14-bit length.
SBF is output with 15-bit length.
SBF is output with 16-bit length.
SBF is output with 17-bit length.
SBF is output with 18-bit length.
SBF is output with 19-bit length.
SBF is output with 20-bit length.
Enables/disables inverting T
First-bit specification
SBF transmission output width control
X
D6n output