XC68HC705F32 Motorola, XC68HC705F32 Datasheet - Page 116

• Manufacturer Part Number: XC68HC705F32
• Description: MICROCONTROLLER
• Manufacturer: Motorola

11
11.10
Transmit data is the serial data from the internal data bus that is applied through the SCI to the
output line. Data format is as discussed in
generates a bit time by using a derivative of the RT clock, thus producing a transmission rate equal
to 1/16th that of the receiver sample clock.
MOTOROLA
11-8
Expected stop
RDI
Break
Transmit data out (TDO)
RDI
RDI
Data
Data
Figure 11-6 Artificial start following a framing error
Figure 11-7 SCI start bit following a break
SERIAL COMMUNICATIONS INTERFACE
Data samples
Data samples
Data samples
Expected stop
Expected stop
b) Case 2: receive line high during expected start edge
a) Case 1: receive line low during artificial edge
Section 11.6
Start edge
Artificial edge
and shown in
qualifiers
Start
verification
Start edge
samples
Detected as valid start edge
Figure
Start bit
Start bit
Start bit
11-3. The transmitter
Data
Data
MC68HC05F32
TPG