MC68HC908AP8CB Freescale Semiconductor, MC68HC908AP8CB Datasheet - Page 158
MC68HC908AP8CB
Manufacturer Part Number
MC68HC908AP8CB
Description
IC MCU 8K FLASH 8MHZ 42SDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908AP8CFBE.pdf
(324 pages)
Specifications of MC68HC908AP8CB
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
8KB (8K 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
-
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Serial Communications Interface Module (SCI)
11.4.1 Data Format
The SCI uses the standard non-return-to-zero mark/space data format illustrated in
11.4.2 Transmitter
Figure 11-4
The baud rate clock source for the SCI can be selected via the configuration bit, SCIBDSRC. Source
selection values are shown in
158
BUS CLOCK
CGMXCLK
SL = 0 => X = A
SL = 1 => X = B
SCIBDSRC
CONFIG2
A
B
FROM
shows the structure of the SCI transmitter.
SL
X
START
START
BIT
BIT
BIT 0
BIT 0
SCP1
SCP0
SCR1
SCR2
SCR0
÷ 4
BIT 1
BIT 1
Figure
SCALER
BIT 2
BIT 2
PRE-
MC68HC908AP Family Data Sheet, Rev. 4
Figure 11-3. SCI Data Formats
Figure 11-4. SCI Transmitter
11-4.
BIT 3
BIT 3
DIVIDER
BAUD
PEN
PTY
BIT M IN SCC1 CLEAR
8-BIT DATA FORMAT
9-BIT DATA FORMAT
BIT M IN SCC1 SET
TXINV
BIT 4
BIT 4
÷ 16
GENERATION
BIT 5
BIT 5
PARITY
DMATE
DMATE
SCTIE
SCTE
DMATE
SCTE
SCTIE
TC
TCIE
T8
M
BIT 6
BIT 6
H
8
PARITY
BIT 7
BIT 7
BIT
SCTIE
7
SCTE
TCIE
TC
SCI DATA REGISTER
6
SHIFT REGISTER
INTERNAL BUS
PARITY
STOP
BIT 8
BIT
BIT
TRANSMIT
5
11-BIT
CONTROL LOGIC
4
TRANSMITTER
START
STOP
NEXT
3
BIT
BIT
2
START
NEXT
1
BIT
LOOPS
ENSCI
Freescale Semiconductor
SBK
Figure
TE
0
L
11-3.
TxD
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