MC908QB8CDWE Freescale Semiconductor, MC908QB8CDWE Datasheet - Page 112

• Manufacturer Part Number: MC908QB8CDWE
• Description: IC MCU 8BIT 8K FLASH 16-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908QB8CDWE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Processor Series: HC08QB
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 14
• Number Of Timers: 4
• Operating Supply Voltage: 3 V to 5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, M68CBL05AE, DEMO908QB8, DEMO908QC16
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• For Use With: DEMO908QB8 - BOARD DEMO FOR MC68HC908QB8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Enhanced Serial Communications Interface (ESCI) Module
13.3.1 Data Format
The SCI uses the standard mark/space non-return-to-zero (NRZ) format illustrated in
13.3.2 Transmitter
Figure 13-4
112
BUS CLOCK
BUSCLKX4
OR
shows the structure of the SCI transmitter.
PSSB4
PSSB3
PSSB2
PSSB1
PSSB0
PDS2
PDS1
PDS0
SCP1
SCP0
SCR2
SCR1
SCR0
÷
INTERRUPT REQUEST
START
4
START
TRANSMITTER
BIT
BIT
BIT 0
BIT 0
SCALER
PRE-
BIT 1
BIT 1
DIVIDER
BAUD
PEN
PTY
BIT 2
BIT 2
Figure 13-3. SCI Data Formats
Figure 13-4. ESCI Transmitter
TXINV
MC68HC908QB8 Data Sheet, Rev. 3
BIT 3
BIT 3
÷
(BIT M IN SCC1 CLEAR)
9-BIT DATA FORMAT
(BIT M IN SCC1 SET)
GENERATION
8-BIT DATA FORMAT
16
PARITY
SCTE
SCTIE
TC
TCIE
BIT 4
BIT 4
T8
M
STOP
BIT 5
BIT 5
8
BIT 6
BIT 6
SCTIE
7
SCTE
TCIE
TC
ESCI DATA REGISTER
6
OR DATA
SHIFT REGISTER
PARITY
INTERNAL BUS
BIT 7
BIT 7
BIT
TRANSMIT
5
11-BIT
4
CONTROL LOGIC
OR DATA
PARITY
TRANSMITTER
STOP
BIT 8
BIT
BIT
3
2
START
NEXT
STOP
BIT
BIT
1
LOOPS
ENSCI
LINT
SBK
TE
0
START
NEXT
BIT
START
Freescale Semiconductor
Figure
13-3.
SCI_TxD