MC56F8257MLH Freescale Semiconductor, MC56F8257MLH Datasheet - Page 316

• Manufacturer Part Number: MC56F8257MLH
• Description: DSC 64K FLASH 60MHZ 64-LQFP
• Manufacturer: Freescale Semiconductor
• Series: 56F8xxxr

Specifications of MC56F8257MLH

• Core Processor: 56800E
• Core Size: 16-Bit
• Speed: 60MHz
• Connectivity: CAN, I²C, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Ram Size: 4K x 16
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x12b, D/A 1x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 64-LQFP
• Product: DSCs
• Processor Series: 56800E
• Core: 56800E
• Device Million Instructions Per Second: 60 MIPs
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 54
• Data Ram Size: 8 KB
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Interrupts
The GPIO’s pullup is configured by writing the pullup enable register. When the pin is
configured for a peripheral function, the pullups are controlled by the pullup enable
register and the direction is specified by the peripheral used. If the pin is set to be an
output, the pullup is disabled.
A pin may have several peripheral functions, one of which may be an analog function. To
access its analog function, the pin must be in peripheral mode with an analog input
enabled. Selecting between an analog peripheral or a digital peripheral is controlled by
the GPIO Peripheral Select Register (GPSn) in the SIM module. When the GPIO is in
peripheral mode and its analog peripheral function is selected, the digital output buffer
and pullup are disabled. The digital input buffer is also disconnected from the pin so that
the digital input is not responding to analog voltages on the pin.
Figure 9-85. Bit View of the GPIO Logic with a Multiplex of Analog Input
9.4 Interrupts
The GPIO module has two types of interrupts:
1. Software interrupt
MC56F825x/4x Reference Manual, Rev. 2, 10/2010
Preliminary
316
Freescale Semiconductor