MC68HC908AP16CB Freescale Semiconductor, MC68HC908AP16CB Datasheet - Page 165
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MC68HC908AP16CB
Manufacturer Part Number
MC68HC908AP16CB
Description
IC MCU 16K FLASH 8MHZ 42SDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908AP8CFBE.pdf
(324 pages)
Specifications of MC68HC908AP16CB
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, IRSCI, SCI, SPI
Peripherals
LED, LVD, POR, PWM
Number Of I /o
32
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
42-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC908AP16CB
Manufacturer:
MOTOROLA
Quantity:
100
Part Number:
MC68HC908AP16CB
Manufacturer:
FREESCALE
Quantity:
20 000
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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 11-8
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 × 16 RT cycles + 10 RT cycles = 154 RT cycles.
With the misaligned character shown in
the count of the transmitting device is
10 bit times × 16 RT cycles = 160 RT cycles.
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 × 16 RT cycles + 10 RT cycles = 170 RT cycles.
With the misaligned character shown in
the count of the transmitting device is
11 bit times × 16 RT cycles = 176 RT cycles.
The maximum percent difference between the receiver count and the transmitter count of a fast 9-bit
character with no errors is
11.4.3.6 Receiver Wakeup
So that the MCU can ignore transmissions intended only for other receivers in multiple-receiver systems,
the receiver can be put into a standby state. Setting the receiver wakeup bit, RWU, in SCC2 puts the
receiver into a standby state during which receiver interrupts are disabled.
Freescale Semiconductor
shows how much a fast received character can be misaligned without causing a noise error
RECEIVER
RT CLOCK
MC68HC908AP Family Data Sheet, Rev. 4
Figure
Figure
170 176
------------------------- -
170 163
------------------------- -
154 160
------------------------- -
Figure 11-8. Fast Data
STOP
170
170
154
–
–
–
11-8, the receiver counts 154 RT cycles at the point when
11-8, the receiver counts 170 RT cycles at the point when
×
×
×
100
100
100
SAMPLES
=
=
=
DATA
3.53%
4.12%
3.90%
˙
IDLE OR NEXT CHARACTER
Functional Description
165
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