4.5.2.4 COP Watchdog Module

• Independent clock source input (independent from CPU/bus clock)

• Choice between two clock sources

• LPO oscillator

• Bus clock

4.5.2.5 System Clocks

• System Oscillator (XOSC) — Loop-control Pierce oscillator; Crystal or ceramic resonator range of 32 kHz to 40 kHz

(low range mode) or 3-32 MHz (high range mode)

• Multipurpose Clock Generator (MCG)

• Frequency-locked loop (FLL) controlled by internal or external reference

• 20MHz~40MHz FLL output

• 40MHz~48MHz FLL output

• Internal reference clocks — Can be used as a clock source for other on-chip peripherals

• On-chip RC oscillator range of 31.25 kHz to 39.0625 kHz with 0.2% trim step and 1% accuracy across

temperature range of 0 °C to 70 °C and 2% accuracy across full temperature range

• Ultra low power 4 MHz IRC

Memories and Memory Interfaces

4.5.3.1 On-Chip Memory

• 48 MHz performance devices

• Up to 64 KB program flash memory for KL14 and up to 128 KB flash memory for KL15

• Up to 8 KB SRAM for KL14 and up to 16 KB SRAM for KL15

• Security circuitry to prevent unauthorized access to RAM and flash contents

Analog

4.5.4.1 Analog-to-Digital Converter (ADC)

• Linear successive approximation algorithm with up to 16-bit resolution

• Output modes:

• Differential 16-bit, 13-bit, 11-bit, and 9-bit modes, in two’s complement 16-bit sign-extended format for KL15

• Single-ended 16-bit (KL15 only), 12-bit, 10-bit, and 8-bit modes, in right-justified unsigned format

• Single or continuous conversion

• Configurable sample time and conversion speed/power

• Conversion complete and hardware average complete flag and interrupt

• Input clock selectable from up to four sources

• Operation in low power modes for lower noise operation

• Asynchronous clock source for lower noise operation with option to output the clock

• Selectable asynchronous hardware conversion trigger with hardware channel select

• Automatic compare with interrupt for various programmable values

• Temperature sensor

• Hardware average function

• Selectable voltage reference

• Self-calibration mode

4.5.3

4.5.4

Memories and Memory Interfaces

KL14/KL15 Product Brief, Rev. 2, 6/2012

14

Preliminary

Freescale Semiconductor, Inc.

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