MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 407

• Manufacturer Part Number: MCF5270CAB100
• Description: MCU V2 COLDFIRE 64K SRAM 160-QFP
• Manufacturer: Freescale Semiconductor
• Series: MCF527xr

Specifications of MCF5270CAB100

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 100MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SPI, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 160-QFP
• Processor Series: MCF527x
• Core: ColdFire V2
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Development Tools By Supplier: NNDK-MOD5272-KIT, NNDK-MOD5270-KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

21.3.3 Timeout Specifications
The 16-bit PIT counter and prescaler supports different timeout periods. The prescaler divides the
internal bus clock period as selected by the PCSRn[PRE] bits. The PMRn[PM] bits select the
timeout period.
21.3.4 Interrupt Operation
Table 21-4
The PIF flag is set when the PIT counter reaches 0x0000. The PIE bit enables the PIF flag to
generate interrupt requests. Clear PIF by writing a 1 to it or by writing to the PMR.
Freescale Semiconductor
shows the interrupt request generated by the PIT.
Timeout period
Interrupt Request
Table 21-4. PIT Interrupt Requests
Timeout
MCF5271 Reference Manual, Rev. 2
=
PRE[3:0]
------------------------------------------------------------------------------------ -
Flag
PIF
×
f
(PM[15:0]
sys 2 ⁄
Enable Bit
PIE
+
1)
Functional Description
21-7