MC908QB8CPE Freescale Semiconductor, MC908QB8CPE Datasheet - Page 157

• Manufacturer Part Number: MC908QB8CPE
• Description: IC MCU 8BIT 8K FLASH 16-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908QB8CPE

• 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-DIP (0.300", 7.62mm)
• For Use With: DEMO908QB8 - BOARD DEMO FOR MC68HC908QB8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

15.3 Functional Description
The SPI module allows full-duplex, synchronous, serial communication between the MCU and peripheral
devices, including other MCUs. Software can poll the SPI status flags or SPI operation can be interrupt
driven.
The following paragraphs describe the operation of the SPI module.
Freescale Semiconductor
SPMSTR
RECEIVER/ERROR INTERRUPT REQUEST
DIVIDER
CLOCK
TRANSMITTER INTERRUPT REQUEST
BUSCLK
÷ 128
SPE
÷ 32
÷ 2
÷ 8
SPR1
SELECT
CLOCK
Figure 15-2. SPI Module Block Diagram
SPR0
MC68HC908QB8 Data Sheet, Rev. 3
7
CONTROL
TRANSMIT DATA REGISTER
RECEIVE DATA REGISTER
6
SPI
SHIFT REGISTER
INTERNAL BUS
5
4
3
MODF
OVRF
SPRF
SPTE
SPMSTR
2
1
MODFEN
ERRIE
SPTIE
SPRIE
SPE
0
CLOCK
LOGIC
CPHA
CPOL
SPWOM
M
S
CONTROL
LOGIC
PIN
Functional Description
MISO
MOSI
SPSCK
SS
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