K60P100M100SF2RM Datasheet, PDF (63/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

Chapter 2 Introduction
Table 2-4. Memories and memory interfaces (continued)
Module
SRAM
SRAM controller
System register file
VBAT register file
Serial programming interface (EzPort)
FlexBus
Description
Internal system RAM. Partial SRAM kept powered in VLLS2 low leakage mode.
Manages simultaneous accesses to system RAM by multiple master peripherals
and core.
32-byte register file that is accessible during all power modes and is powered by
VDD.
32-byte register file that is accessible during all power modes and is powered by
VBAT.
Same serial interface as, and subset of, the command set used by industry-
standard SPI flash memories. Provides the ability to read, erase, and program
flash memory and reset command to boot the system after flash programming.
External bus interface with multiple independent, user-programmable chip-select
signals that can interface with external SRAM, PROM, EPROM, EEPROM, flash,
and other peripherals via 8-, 16- and 32-bit port sizes. Configurations include
multiplexed or non-multiplexed address and data buses using 8-bit, 16-bit, 32-bit,
and 16-byte line-sized transfers.
2.3.4 Clocks
The following clock modules are available on this device.
Table 2-5. Clock modules
Module
Multi-clock generator (MCG)
System oscillator
Real-time clock oscillator
Description
The MCG provides several clock sources for the MCU that include:
• Phase-locked loop (PLL) — Voltage-controlled oscillator (VCO)
• Frequency-locked loop (FLL) — Digitally-controlled oscillator (DCO)
• Internal reference clocks — Can be used as a clock source for other on-chip
peripherals
The system oscillator, in conjunction with an external crystal or resonator,
generates a reference clock for the MCU.
The RTC oscillator has an independent power supply and supports a 32 kHz
crystal oscillator to feed the RTC clock. Optionally, the RTC oscillator can replace
the system oscillator as the main oscillator source.
2.3.5 Security and Integrity modules
The following security and integrity modules are available on this device:
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc.
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