S908AC4MDRE FREESCALE [Freescale Semiconductor, Inc], S908AC4MDRE Datasheet - Page 127
![no-image](/images/no-image-200.jpg)
S908AC4MDRE
Manufacturer Part Number
S908AC4MDRE
Description
M68HC08 Microcontrollers
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.S908AC4MDRE.pdf
(274 pages)
- Current page: 127 of 274
- Download datasheet (4Mb)
13.3.2.3 Break Characters
Writing a 1 to the send break bit, SBK, in SCC2 loads the transmit shift register with a break character.
For TXINV = 0 (output not inverted), a transmitted break character contains all 0s and has no start, stop,
or parity bit. Break character length depends on the M bit in SCC1 and the LINR bits in SCBR. As long
as SBK is set, transmitter logic continuously loads break characters into the transmit shift register. After
software clears the SBK bit, the shift register finishes transmitting the last break character and then
transmits at least one 1. The automatic 1 at the end of a break character guarantees the recognition of
the start bit of the next character.
When LINR is cleared in SCBR, the ESCI recognizes a break character when a start bit is followed by
eight or nine 0 data bits and a 0 where the stop bit should be, resulting in a total of 10 or 11 consecutive
0 data bits. When LINR is set in SCBR, the ESCI recognizes a break character when a start bit is followed
by 9 or 10 0 data bits and a 0 where the stop bit should be, resulting in a total of 11 or 12 consecutive 0
data bits.
Freescale Semiconductor
BUS CLOCK
BUSCLKX4
OR
PSSB4
PSSB3
PSSB2
PSSB1
PSSB0
PDS2
PDS1
PDS0
SCP1
SCP0
SCR2
SCR1
SCR0
÷
INTERRUPT REQUEST
4
TRANSMITTER
MC68HC908QC16 • MC68HC908QC8 • MC68HC908QC4 Data Sheet, Rev. 5
SCALER
PRE-
DIVIDER
BAUD
PEN
PTY
Figure 13-4. ESCI Transmitter
TXINV
÷
GENERATION
16
PARITY
SCTE
SCTIE
TC
TCIE
T8
M
STOP
8
SCTIE
7
SCTE
TCIE
TC
ESCI DATA REGISTER
6
SHIFT REGISTER
INTERNAL BUS
TRANSMIT
5
11-BIT
4
CONTROL LOGIC
TRANSMITTER
3
2
1
LOOPS
ENSCI
LINT
SBK
TE
0
START
Functional Description
SCI_TxD
127
Related parts for S908AC4MDRE
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![MA0186100](/images/manufacturer_photos/0/6/626/square_d_tmb.jpg)
Part Number:
Description:
S908 RIO COAX NET SPLITTER
Manufacturer:
SQUARE D
Datasheet:
![140CRA93100C](/images/manufacturer_photos/0/6/626/square_d_tmb.jpg)
Part Number:
Description:
S908 SINGLE CHANNEL DROP CC
Manufacturer:
SQUARE D
Datasheet:
![140CRA93200C](/images/manufacturer_photos/0/6/626/square_d_tmb.jpg)
Part Number:
Description:
S908 DUAL CHANNEL DROP CC
Manufacturer:
SQUARE D
Datasheet:
![140CRP93100C](/images/manufacturer_photos/0/6/626/square_d_tmb.jpg)
Part Number:
Description:
S908 SINGLE-CHAN HD CC
Manufacturer:
SQUARE D
Datasheet:
![140CRP93200C](/images/manufacturer_photos/0/6/626/square_d_tmb.jpg)
Part Number:
Description:
S908 DUAL-CHANNEL HEAD CC
Manufacturer:
SQUARE D
Datasheet:
![MA0185100](/images/manufacturer_photos/0/6/626/square_d_tmb.jpg)
Part Number:
Description:
S908 RIO COAX DROP TAP
Manufacturer:
SQUARE D
Datasheet:
![MC14560BCP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC12034AP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MPIC2112P](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC14520BCP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC12026AP](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC145152P2](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MC68HC11A0P](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
![MCM6726DWJ10](/images/manufacturer_photos/0/2/263/freescale_semiconductor__inc_tmb.jpg)
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet: