MC9S12E128CFU Freescale Semiconductor, MC9S12E128CFU Datasheet - Page 278

• Manufacturer Part Number: MC9S12E128CFU
• Description: IC MCU 128K FLASH 25MHZ 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12E128CFU

• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, I²C, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 60
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 2.75 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Data Bus Width: 16 bit
• Data Ram Size: 8 KB
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 60
• Number Of Timers: 16 bit
• Operating Supply Voltage: 3.135 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• On-chip Dac: 8 bit, 2 Channel
• For Use With: M68EVB912E128 - BOARD EVAL FOR MC9S12E128/64
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No RoHS Version Available

Chapter 9 Serial Peripheral Interface (SPIV3)
9.1.3
Figure 9-1
registers, shifter logic, baud rate generator, master/slave control logic, and port control logic.
9.2
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.
9.2.1
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.
278
Bus Clock
Interrupt
Request
SPI
External Signal Description
gives an overview on the SPI architecture. The main parts of the SPI are status, control, and data
Block Diagram
MOSI — Master Out/Slave In Pin
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
MC9S12E128 Data Sheet, Rev. 1.07
Figure 9-1. SPI Block Diagram
Baud Rate
LSBFE=1
LSBFE=0
8
8
Control
Control
Master
Slave
Master Baud Rate
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