MC68HC908AP64CB Freescale Semiconductor, MC68HC908AP64CB Datasheet - Page 158

• Manufacturer Part Number: MC68HC908AP64CB
• Description: IC MCU 64K FLASH 8MHZ 42SDIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908AP64CB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, IRSCI, SCI, SPI
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 30
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K 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)
• For Use With: DEMO908AP64E - BOARD DEMO FOR 908AP64DEMO908AP64 - BOARD DEMO FOR 908AP64
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

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