MC9S12C128VFU Freescale Semiconductor, MC9S12C128VFU Datasheet - Page 414

• Manufacturer Part Number: MC9S12C128VFU
• Manufacturer: Freescale Semiconductor

Specifications of MC9S12C128VFU

• Cpu Family: HCS12
• Device Core Size: 16b
• Frequency (max): 25MHz
• Interface Type: CAN/SCI/SPI
• Program Memory Type: Flash
• Program Memory Size: 128KB
• Total Internal Ram Size: 4KB
• # I/os (max): 60
• Number Of Timers - General Purpose: 8
• Operating Supply Voltage (typ): 2.5/5V
• Operating Supply Voltage (max): 2.75/5.5V
• Operating Supply Voltage (min): 2.35/2.97V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 105C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 80
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

Chapter 14 Serial Peripheral Interface (SPIV3) Block Description
14.1.3
Figure 14-1
data registers, shifter logic, baud rate generator, master/slave control logic, and port control logic.
14.2
This section lists the name and description of all ports including inputs and outputs that do, or may, connect
off chip. The SPIV3 module has a total of four external pins.
14.2.1
This pin is used to transmit data out of the SPI module when it is configured as a master and receive data
when it is configured as slave.
414
Bus Clock
Interrupt
Request
SPI
External Signal Description
Block Diagram
MOSI — Master Out/Slave In Pin
gives an overview on the SPI architecture. The main parts of the SPI are status, control, and
SPPR
SPI
SPI Baud Rate Register
Prescaler
SPI Control Register 1
SPI Control Register 2
Baud Rate Generator
SPI Status Register
SPI Data Register
Interrupt Control
SPIF
3
SPR
Clock Select
MODF
Counter
3
SPTEF
MC9S12C-Family / MC9S12GC-Family
Figure 14-1. SPI Block Diagram
Baud Rate
LSBFE=1
LSBFE=0
8
8
Control
Control
Master
Slave
Master Baud Rate
Rev 01.24
Slave Baud Rate
MSB
2
2
Shifter
LSBFE=1
LSBFE=0
LSBFE=0
LSBFE=1
CPOL
Clock
Shift
Phase +
Polarity
Control
Phase +
Polarity
Control
LSB
CPHA
Sample
Clock
BIDIROE
SPC0
data out
SCK in
SCK out
data in
Control
Logic
Freescale Semiconductor
Port
MOSI
SCK
SS