MC68HC708MP16CFU

Manufacturer Part NumberMC68HC708MP16CFU
ManufacturerFreescale Semiconductor, Inc
MC68HC708MP16CFU datasheet
 
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Serial Communications Interface Module (SCI)
TE after the stop bit appears on PTF5/TxD causes data previously
written to the SCDR to be lost.
A good time to toggle the TE bit is when the SCTE bit becomes set and
just before writing the next byte to the SCDR.
14.4.2.5 Inversion of Transmitted Output
The transmit inversion bit (TXINV) in SCI control register 1 (SCC1)
reverses the polarity of transmitted data. All transmitted values, including
idle, break, start, and stop bits, are inverted when TXINV is at logic 1.
(See
14.8.1 SCI Control Register
14.4.2.6 Transmitter Interrupts
The following conditions can generate CPU interrupt requests from the
SCI transmitter:
Technical Data
292
Serial Communications Interface Module (SCI)
1.)
SCI transmitter empty (SCTE) — The SCTE bit in SCS1 indicates
that the SCDR has transferred a character to the transmit shift
register. SCTE can generate a transmitter CPU interrupt request.
Setting the SCI transmit interrupt enable bit, SCTIE, in SCC2
enables the SCTE bit to generate transmitter CPU interrupt
requests.
Transmission complete (TC) — The TC bit in SCS1 indicates that
the transmit shift register and the SCDR are empty and that no
break or idle character has been generated. The transmission
complete interrupt enable bit, TCIE, in SCC2 enables the TC bit to
generate transmitter CPU interrupt requests.
MC68HC708MP16
Rev. 3.1
Freescale Semiconductor