MC68HC711P2CFN4 Freescale Semiconductor, MC68HC711P2CFN4 Datasheet - Page 114

• Manufacturer Part Number: MC68HC711P2CFN4
• Description: IC MCU 32K OTP 4MHZ 84-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711P2CFN4

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 4MHz
• 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: Contains lead / RoHS non-compliant

Motorola Interconnect Bus (MI BUS)
6.7.1 Controller detected errors
6.7.2 MCU detected errors
Technical Data
There are three different MI BUS error types which are detected by the
selected slave device and are not mutually exclusive. The MCU cannot
determine which error occurred.
There is a fourth error that can be detected by the MCU. This error
causes the noise flag (NF) to be asserted in the S2SR1 (or S3SR1)
register during the push field sequence.
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Noise error Slave devices take two samples in each time slot of
the biphase encoded push field. An error occurs when the two
samples for each time slot are not the same logical level.
Biphase error Slave devices receiving the push field detect the
biphase code. An error occurs when the two time slots of the
biphase code do not yield a logical exclusive-OR function.
Field error A field error is detected when the fixed-form of the
push field is violated.
Bit error A bit error can be detected by the MCU during the push
field. The MI BUS serial system monitors the bus via on-chip
hardware at the RXD pin at the same time as sending data. A bit
error is detected at that bit time when the value monitored is
different from the bit value sent.
Motorola Interconnect Bus (MI BUS)
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MC68HC11P2 — Rev 1.0