MPC555LFMZP40 Freescale Semiconductor, MPC555LFMZP40 Datasheet - Page 225

• Manufacturer Part Number: MPC555LFMZP40
• Description: IC MCU 32BIT 40MHZ 272-BGA
• Manufacturer: Freescale Semiconductor
• Series: MPC5xxr

Specifications of MPC555LFMZP40

• Core Processor: PowerPC
• Core Size: 32-Bit
• Speed: 40MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 101
• Program Memory Size: 448KB (448K x 8)
• Program Memory Type: FLASH
• Ram Size: 26K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 2.7 V
• Data Converters: A/D 32x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 272-PBGA
• Controller Family/series: POWER 5xx
• Ram Memory Size: 26KB
• Cpu Speed: 63MIPS
• Embedded Interface Type: QSPI, SCI, TouCAN
• Operating Temperature Range: -40°C To +125°C
• No. Of Pins: 272
• Rohs Compliant: No
• Processor Series: MPC5xx
• Core: PowerPC
• Data Bus Width: 32 bit
• Data Ram Size: 26 KB
• Interface Type: CAN, QSPI, SCI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 101
• Operating Supply Voltage: 3.3 V to 5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: MPC555CMEE
• Minimum Operating Temperature: - 85 C
• On-chip Adc: 10 bit, 32 Channel
• Cpu Family: MPC55xx
• Device Core: PowerPC
• Device Core Size: 32b
• Frequency (max): 40MHz
• Total Internal Ram Size: 32KB
• # I/os (max): 101
• Operating Supply Voltage (typ): 5V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 272
• Package Type: BGA
• For Use With: MPC555CMEE - KIT EVAL FOR MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: No

MPC555
USER’S MANUAL
Although the writes must occur in the correct order prior to time-out, any number of
instructions may be executed between the writes. This allows interrupts and excep-
tions to occur, if necessary, between the two writes.
Although most software disciplines support the watchdog concept, different systems
require different time-out periods. For this reason, the software watchdog provides a
selectable range for the time-out period.
In
SWTC field is then loaded into a 16-bit decrementer clocked by the system clock. An
additional divide by 2048 prescaler is used if necessary. The decrementer begins
counting when loaded with a value from the software watchdog timing count field
(SWTC). After the timer reaches 0x0, a software watchdog expiration request is issued
to the reset or NMI control logic.
Upon reset, the value in the SWTC is set to the maximum value and is again loaded
into the software watchdog register (SWR), starting the process over. When a new val-
ue is loaded into the SWTC, the software watchdog timer is not updated until the ser-
vicing sequence is written to the SWSR. If the SWE is loaded with the value zero, the
modulus counter does not count.
Figure
Not 0x556C / Don’t Reload
/
MPC556
Reset
6-9, the range is determined by the value SWTC field. The value held in the
Waiting for 0x556C
Figure 6-8 SWT Interrupts and Exceptions
Freescale Semiconductor, Inc.
SYSTEM CONFIGURATION AND PROTECTION
State 0
For More Information On This Product,
Go to: www.freescale.com
Rev. 15 October 2000
0x556C / Don’t Reload
0xAA39 / Reload
Not 0xAA39 / Don’t Reload
Waiting for 0xAA39
Not 0x556C / Don’t Reload
State 1
MOTOROLA
6-17