MC711P2CFNE3 Freescale Semiconductor, MC711P2CFNE3 Datasheet - Page 134

• Manufacturer Part Number: MC711P2CFNE3
• Description: IC MCU 8BIT 84-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC711P2CFNE3

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 3MHz
• Connectivity: MI Bus, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Eeprom Size: 640 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 84-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Serial Peripheral Interface (SPI)
7.7.2 SPSR — Serial peripheral status register
Technical Data
SPI status (SPSR)
SPIF — SPI interrupt complete flag
WCOL — Write collision
MODF — Mode fault
Bits [5, 3:0] — Not implemented; always read zero.
Freescale Semiconductor, Inc.
SPIF is set upon completion of data transfer between the processor
and the external device. If SPIF goes high, and if SPIE is set, a serial
peripheral interrupt is generated. To clear the SPIF bit, read the SPSR
with SPIF set, then access the SPDR. Unless SPSR is read (with
SPIF set) first, attempts to write SPDR are inhibited.
Clearing the WCOL bit is accomplished by reading the SPSR (with
WCOL set) followed by an access of SPDR. Refer to
and
To clear the MODF bit, read the SPSR (with MODF set), then write to
the SPCR. Refer to
Address bit 7
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1 = Data transfer to external device has been completed.
0 = No valid completion of data transfer.
1 = Write collision.
0 = No write collision.
1 = Mode fault.
0 = No mode fault.
SPI system
Serial Peripheral Interface (SPI)
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SPIF WCOL
bit 6
errors.
Slave select
bit 5
0
MODF
bit 4
and
bit 3
0
SPI system
bit 2
0
MC68HC11P2 — Rev 1.0
bit 1
0
errors.
Slave select
bit 0
0
0000 0000
on reset
State