MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 389

• Manufacturer Part Number: MMC2114
• Description: M CORE Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

17.12.5.2 Fast Data Tolerance
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
Serial Communications Interface Modules (SCI1 and SCI2)
Figure 17-24
without causing a noise error or a framing error. The fast stop bit ends at
RT10 instead of RT16 but is still sampled at RT8, RT9, and RT10.
For 8-bit data, sampling of the stop bit takes the receiver:
With the misaligned data shown in
154 RT cycles at the point when the count of the transmitting device is:
The maximum percent difference between the receiver count and the
transmitter count for fast 8-bit data with no errors is:
For 9-bit data, sampling of the stop bit takes the receiver:
With the misaligned data shown in
170 RT cycles at the point when the count of the transmitting device is:
The maximum percent difference between the receiver count and the
transmitter count for fast 9-bit data with no errors is:
Freescale Semiconductor, Inc.
RECEIVER
RT CLOCK
For More Information On This Product,
10 bit times
9 bit times
Go to: www.freescale.com
10 bit times
11 bit times
shows how much a fast received frame can be misaligned
16 RT cycles + 10 RT cycles = 154 RT cycles.
16 RT cycles + 10 RT cycles = 170 RT cycles.
Serial Communications Interface Modules (SCI1 and SCI2)
154 160
------------------------- -
170 176
------------------------- -
Figure 17-24. Fast Data
STOP
154
170
–
–
16 RT cycles = 160 RT cycles.
16 RT cycles = 176 RT cycles.
Figure
Figure
100
100
SAMPLES
DATA
=
=
17-24, the receiver counts
17-24, the receiver counts
3.90%
3.53%
IDLE OR NEXT FRAME
Advance Information
Receiver
389