MCF5282CVM66 Freescale, MCF5282CVM66 Datasheet - Page 367

• Manufacturer Part Number: MCF5282CVM66
• Manufacturer: Freescale

Specifications of MCF5282CVM66

• Cpu Family: MCF528x
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 66MHz
• Interface Type: CAN/I2C/QSPI/UART
• Total Internal Ram Size: 64KB
• # I/os (max): 150
• Number Of Timers - General Purpose: 12
• Operating Supply Voltage (typ): 3.3V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 256
• Package Type: MA-BGA
• Program Memory Type: Flash
• Program Memory Size: 512KB
• Lead Free Status / RoHS Status: Compliant

When the PCSRn[OVW] bit is set, counter can be directly initialized by writing to PMRn without having
to wait for the count to reach 0x0000.
19.3.3
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.
19.3.4
Table 19-6
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
PIT CLOCK
COUNTER
MODULUS
PIF
shows the interrupt request generated by the PIT.
Timeout Specifications
Interrupt Operation
0x0002
Timeout period
Interrupt Request
Figure 19-6. Counter in Free-Running Mode
Timeout
Table 19-6. PIT Interrupt Requests
=
2
----------------------------------------------------------------------- -
0x0001
PCSRn[PRE]
×
f
0x0005
(PMRn[PM]
sys
Flag
PIF
+
0x0000
1)
Enable Bit
Programmable Interrupt Timers (PIT0–PIT3)
PIE
0xFFFF
Eqn. 19-1
19-7