MC9S12E128CFU Freescale Semiconductor, MC9S12E128CFU Datasheet - Page 286

• 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)
9.3.2.4
Read: anytime
Write: has no effect
9.3.2.5
Read: anytime; normally read only after SPIF is set
Write: anytime
286
SPTEF
Reset
Reset
MODF
Field
SPIF
7
5
4
W
W
R
R
SPIF
SPIF Interrupt Flag — This bit is set after a received data byte has been transferred into the SPI Data Register.
This bit is cleared by reading the SPISR register (with SPIF set) followed by a read access to the SPI Data
Register.
0 Transfer not yet complete
1 New data copied to SPIDR
SPI Transmit Empty Interrupt Flag — If set, this bit indicates that the transmit data register is empty. To clear
this bit and place data into the transmit data register, SPISR has to be read with SPTEF = 1, followed by a write
to SPIDR. Any write to the SPI Data Register without reading SPTEF = 1, is effectively ignored.
0 SPI Data register not empty
1 SPI Data register empty
Mode Fault Flag — This bit is set if the SS input becomes low while the SPI is configured as a master and mode
fault detection is enabled, MODFEN bit of SPICR2 register is set. Refer to MODFEN bit description in
Section 9.3.2.2, “SPI Control Register 2 (SPICR2).”
Register (with MODF set) followed by a write to the SPI Control Register 1.
0 Mode fault has not occurred.
1 Mode fault has occurred.
Bit 7
SPI Status Register (SPISR)
SPI Data Register (SPIDR)
0
0
7
7
= Unimplemented or Reserved
= Unimplemented or Reserved
0
0
6
0
6
6
Figure 9-6. SPI Status Register (SPISR)
Figure 9-7. SPI Data Register (SPIDR)
Table 9-8. SPISR Field Descriptions
SPTEF
MC9S12E128 Data Sheet, Rev. 1.07
1
5
0
5
5
MODF
0
4
0
4
4
Description
The flag is cleared automatically by a read of the SPI Status
0
0
3
0
3
3
0
0
2
0
2
2
Freescale Semiconductor
0
0
2
0
1
1
Bit 0
0
0
0
0
0