NEC 78K0S/KA1+ User Manual page 190

Figure 11-10. Format of Asynchronous Serial Interface Control Register 6 (ASICL6) (2/2)
SBL62
1
1
1
0
0
0
0
1
DIR6
0
1
TXDLV6
0
1
Cautions 1. In the case of an SBF reception error, return the mode to the SBF reception mode again and
hold (1) the status of the SBRF6 flag.
2. Before setting the SBRT6 bit to 1, make sure that bit 7 (POWER6) and bit 5 (RXE6) of ASIM6 =
1. Moreover, after setting the SBRT6 bit to 1, do not clear the SBRT6 bit to 0 before the SBF
reception ends (an interrupt request signal is generated).
3. The read value of the SBRT6 bit is always 0. SBRT6 is automatically cleared to 0 after SBF
reception has been correctly completed.
4. Before setting the SBTT6 bit to 1, make sure that bit 7 (POWER6) and bit 6 (TXE6) of ASIM6 =
1. Moreover, after setting the SBTT6 bit to 1, do not clear the SBTT6 bit to 0 before the SBF
transmission ends (an interrupt request signal is generated).
5. The read value of the SBTT6 bit is always 0. SBTT6 is automatically cleared to 0 at the end of
SBF transmission.
6. Before rewriting the DIR6 and TXDLV6 bits, clear the TXE6 and RXE6 bits to 0.
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CHAPTER 11 SERIAL INTERFACE UART6
SBL61 SBL60
0 1 SBF is output with 13-bit length.
1 0 SBF is output with 14-bit length.
1 1 SBF is output with 15-bit length.
0 0 SBF is output with 16-bit length.
0 1 SBF is output with 17-bit length.
1 0 SBF is output with 18-bit length.
1 1 SBF is output with 19-bit length.
0 0 SBF is output with 20-bit length.
MSB
LSB
Enabling/disabling inverting T
Normal output of T D6
X
Inverted output of T D6
X
User's Manual U16898EJ3V0UD
SBF transmission output width control
Specification of first bit
D6 output
X