MC68HC708XL36 FREESCALE [Freescale Semiconductor, Inc], MC68HC708XL36 Datasheet - Page 254

• Manufacturer Part Number: MC68HC708XL36
• Description: HCMOS Microcontroller Unit
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

SCI
MC68HC708XL36
254
The maximum percent difference between the receiver count and the
transmitter count of a slow 9-bit character with no errors is
Fast Data Tolerance
Figure 10
without causing a noise error or a framing error. The fast stop bit ends at
RT10 instead of RT16 but is still there for the stop bit data samples at
RT8, RT9, and RT10.
For an 8-bit character, data sampling of the stop bit takes the receiver
9 bit times
With the misaligned character shown in
154 RT cycles at the point when the count of the transmitting device is
10 bit times
The maximum percent difference between the receiver count and the
transmitter count of a fast 8-bit character with no errors is
For a 9-bit character, data sampling of the stop bit takes the receiver
10 bit times
RECEIVER
RT CLOCK
Freescale Semiconductor, Inc.
For More Information On This Product,
shows how much a fast received character can be misaligned
Go to: www.freescale.com
16 RT cycles + 10 RT cycles = 154 RT cycles.
16 RT cycles = 160 RT cycles.
16 RT cycles + 10 RT cycles = 170 RT cycles.
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170 163
------------------------- -
STOP
Figure 10. Fast Data
170
–
100
SAMPLES
DATA
Figure
=
4.12%
IDLE OR NEXT CHARACTER
10, the receiver counts
MOTOROLA
20-sci_d