Freescale MCF52223 DATA SHEET
Freescale Semiconductor
LQFP–64
10 mm x 10 mm
MAPBGA–81
10 mm x 10 mm
LQFP–100
14 mm x 14 mm
QFN–64
9mmx9mm
Data Sheet
MCF52223 ColdFire Microcontroller
Supports MCF52223 &
MCF52221
The MCF52223 is a member of the ColdFire® family of
reduced instruction set computing (RISC) microprocessors.
This document provides an overview of the 32-bit MCF52223
microcontroller, focusing on its highly integrated and diverse
feature set.
This 32-bit device is based on the Version 2 ColdFire core
operating at a frequency up to 80 MHz, offering high
performance and low power consumption. On-chip memories
connected tightly to the processor core include up to
256 Kbytes of flash memory and 32 Kbytes of static random
access memory (SRAM). On-chip modules include:
• V2 ColdFire core delivering 76 MIPS (Dhrystone 2.1) at 80
MHz running from internal flash memory with Multiply
Accumulate (MAC) Unit and hardware divider
• Universal Serial Bus On-The-Go (USBOTG)
• USB Transceiver
• Three universal asynchronous/synchronous
receiver/transmitters (UARTs)
• Inter-integrated circuit (I2C™) bus controller
• Queued serial peripheral interface (QSPI) module
• Eight-channel 12-bit fast analog-to-digital converter
(ADC)
• Four-channel direct memory access (DMA) controller
• Four 32-bit input capture/output compare timers with
DMA support (DTIM)
• Four-channel general-purpose timer (GPT) capable of
input capture/output compare, pulse width modulation
(PWM), and pulse accumulation
• Eight-channel/Four-channel, 8-bit/16-bit pulse width
modulation timer
• Two 16-bit periodic interrupt timers (PITs)
• Real-time clock (RTC) module
• Programmable software watchdog timer
• Interrupt controller capable of handling 57 sources
• Clock module with 8 MHz on-chip relaxation oscillator
and integrated phase-locked loop (PLL)
• Test access/debug port (JTAG, BDM)
Document Number: MCF52223DS
Rev. 2, 04/2007
MCF52223
This document contains information on a product under development. Freescale reserves the
right to change or discontinue this product without notice.
© Freescale Semiconductor, Inc., 2007. All rights reserved.
Table of Contents
1 MCF52223 Family Configurations . . . . . . . . . . . . . . . . . . . . . .3
1.1 Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.3 Reset Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
1.4 PLL and Clock Signals . . . . . . . . . . . . . . . . . . . . . . . . .21
1.5 Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
1.6 External Interrupt Signals . . . . . . . . . . . . . . . . . . . . . . .22
1.7 Queued Serial Peripheral Interface (QSPI). . . . . . . . . .22
1.8 USB On-the-Go. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
2
1.9 I
C I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
1.10 UART Module Signals. . . . . . . . . . . . . . . . . . . . . . . . . .23
1.11 DMA Timer Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
1.12 ADC Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
1.13 General Purpose Timer Signals . . . . . . . . . . . . . . . . . .24
1.14 Pulse Width Modulator Signals . . . . . . . . . . . . . . . . . . . 24
1.15 Debug Support Signals . . . . . . . . . . . . . . . . . . . . . . . . .24
1.16 EzPort Signal Descriptions . . . . . . . . . . . . . . . . . . . . . .25
1.17 Power and Ground Pins . . . . . . . . . . . . . . . . . . . . . . . .26
2 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
2.1 Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
2.2 Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . .28
2.3 Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . .29
2.4 Flash Memory Characteristics . . . . . . . . . . . . . . . . . . .31
2.5 ESD Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
2.6 DC Electrical Specifications . . . . . . . . . . . . . . . . . . . . . 32
2.7 Clock Source Electrical Specifications . . . . . . . . . . . . .33
2.8 General Purpose I/O Timing . . . . . . . . . . . . . . . . . . . . .34
2.9 Reset Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
2
2.10 I
C Input/Output Timing Specifications . . . . . . . . . . . . .36
2.11 Analog-to-Digital Converter (ADC) Parameters . . . . . .37
2.12 Equivalent Circuit for ADC Inputs . . . . . . . . . . . . . . . . .38
2.13 DMA Timers Timing Specifications . . . . . . . . . . . . . . . . 39
2.14 QSPI Electrical Specifications. . . . . . . . . . . . . . . . . . . .39
2.15 JTAG and Boundary Scan Timing . . . . . . . . . . . . . . . . .40
2.16 Debug AC Timing Specifications. . . . . . . . . . . . . . . . . .42
3 Mechanical Outline Drawings . . . . . . . . . . . . . . . . . . . . . . . . .44
3.1 64-pin LQFP Package. . . . . . . . . . . . . . . . . . . . . . . . . .44
3.2 64 QFN Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
3.3 81 MAPBGA Package. . . . . . . . . . . . . . . . . . . . . . . . . .51
3.4 100-pin LQFP Package. . . . . . . . . . . . . . . . . . . . . . . . .53
4 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
List of Figures
Figure 1.MCF52223 Block Diagram . . . . . . . . . . . . . . . . . . . . . . 4
Figure 2.100 LQFP Pin Assignments . . . . . . . . . . . . . . . . . . . . 13
Figure 3.81 MAPBGA Pin Assignments . . . . . . . . . . . . . . . . . . 14
Figure 4.64 LQFP and 64 QFN Pin Assignments . . . . . . . . . . . 15
Figure 5.GPIO Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 6.RSTI and Configuration Override Timing . . . . . . . . . . 35
Figure 7.I
Figure 8.Equivalent Circuit for A/D Loading. . . . . . . . . . . . . . . . 38
Figure 9.QSPI Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 10.Test Clock Input Timing . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 11.Boundary Scan (JTAG) Timing . . . . . . . . . . . . . . . . . 41
Figure 12.Test Access Port Timing . . . . . . . . . . . . . . . . . . . . . . 41
Figure 13.TRST Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 14.Real-Time Trace AC Timing . . . . . . . . . . . . . . . . . . . . 42
Figure 15.BDM Serial Port AC Timing . . . . . . . . . . . . . . . . . . . . 43
2
C Input/Output Timings . . . . . . . . . . . . . . . . . . . . . . . 37
List of Tables
Table 1. MCF52223 Family Configurations . . . . . . . . . . . . . . . . . 3
Table 2. Pin Functions by Primary and Alternate Purpose . . . . 16
Table 3. Reset Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 4. PLL and Clock Signals . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 5. Mode Selection Signals . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 6. Clocking Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 7. External Interrupt Signals . . . . . . . . . . . . . . . . . . . . . . 22
Table 8. Queued Serial Peripheral Interface (QSPI) Signals. . . 22
Ta bl e 9 . I
Table 10.UART Module Signals . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 11.DMA Timer Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 12.ADC Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 13.GPT Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 14.PWM Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 15.Debug Support Signals . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 16.EzPort Signal Descriptions . . . . . . . . . . . . . . . . . . . . . 25
Table 17.Power and Ground Pins. . . . . . . . . . . . . . . . . . . . . . . . 26
Table 18.Absolute Maximum Ratings, . . . . . . . . . . . . . . . . . . . 27
Table 19.Current Consumption in Low-Power Mode
Table 20.Typical Active Current Consumption Specifications. . . 29
Table 21.Thermal Characteristics. . . . . . . . . . . . . . . . . . . . . . . . 29
Table 22.SGFM Flash Program and Erase Characteristics . . . . 31
Table 23.SGFM Flash Module Life Characteristics . . . . . . . . . . 31
Table 24.ESD Protection Characteristics, . . . . . . . . . . . . . . . . . 32
Table 25.DC Electrical Specifications . . . . . . . . . . . . . . . . . . . . 32
Table 26.PLL Electrical Specifications . . . . . . . . . . . . . . . . . . . . 33
Table 27.GPIO Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 28.Reset and Configuration Override Timing . . . . . . . . . . 35
Table 29.I
Table 30.I
Table 31.ADC Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 32.Timer Module AC Timing Specifications . . . . . . . . . . . 39
Table 33.QSPI Modules AC Timing Specifications. . . . . . . . . . . 39
Table 34.JTAG and Boundary Scan Timing . . . . . . . . . . . . . . . . 40
Table 35.Debug AC Timing Specification . . . . . . . . . . . . . . . . . . 42
Table 36.Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
2
C I/O Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
,
. . . . . . . . . 28
2
C Input Timing Specifications between I2C_SCL and
I2C_SDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2
C Output Timing Specifications between I2C_SCL and
I2C_SDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
MCF52223 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor2
1 MCF52223 Family Configurations
Table 1. MCF52223 Family Configurations
Module 52221 52223
MCF52223 Family Configurations
ColdFire Version 2 Core with MAC (Multiply-Accumulate Unit)
System Clock 66, 80 MHz
Performance (Dhrystone 2.1 MIPS) up to 76
Flash / Static RAM (SRAM) 128/16 Kbytes 256/32 Kbytes
Interrupt Controller (INTC)
Fast Analog-to-Digital Converter (ADC)
USB On-The-Go (USB OTG)
Four-channel Direct-Memory Access (DMA)
Software Watchdog Timer (WDT)
Programmable Interrupt Timer 2 2
Four-Channel General Purpose Timer
32-bit DMA Timers 4 4
QSPI
UART(s) 3 3
2
C
I
Eight/Four-channel 8/16-bit PWM Timer
••
••
••
••
••
••
••
••
••
••
General Purpose I/O Module (GPIO)
Chip Configuration and Reset Controller Module
Background Debug Mode (BDM)
JTAG - IEEE 1149.1 Test Access Port
Package 64 LQFP
1
The full debug/trace interface is available only on the 100-pin packages. A reduced debug interface is
bonded on smaller packages.
Freescale Semiconductor 3
1
MCF52223 ColdFire Microcontroller, Rev. 2
••
••
••
••
81 MAPBGA
81 MAPBGA
100 LQFP
MCF52223 Family Configurations
Arbiter
Interrupt
Controller
UART
0
QSPI
UART
1
UART
2
I2C
DTIM0DTIM1DTIM2DTIM
3
V2 ColdFire CPU
IFP OEP MAC
4 CH DMA
MUX
JTAG
TAP
To/From PADI
32 Kbytes
SRAM
(4K×16)×4
256 Kbytes
Flash
(32K×16)×4
PORTS
(GPIO)
CIM
RSTI
RSTO
UTXDn
URXDn
U
RTSn
DTINn/DTOUTn
JTAG_EN
ADCAN[7:0]
V
RHVRL
PLL OCO
CLKGEN
Edge
Port
USB OTG
EXTAL XTAL CLKOUT
PIT0 PIT1 GPT PWM
To/From Interrupt Controller
U
CTSn
PMM
V
STBY
PADI – Pin Muxing
EzPort
EzPCS
CLKMOD0 CLKMOD1
QSPI_CLK,
QSPI_CSn
PWMn
QSPI_DIN,
QSPI_DOUT
GPTn
EzPCK
EzPD
EzPQ
SWT
1.1 Block Diagram
Figure 1 shows a top-level block diagram of the MCF52223. Package options for this family are described later in this
document.
Figure 1. MCF52223 Block Diagram
1.2 Features
This document contains information on a new product under development. Freescale reserves the right to change or discontinue
this product without notice. Specifications and information herein are subject to change without notice.
MCF52223 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor4
1.2.1 Feature Overview
The MCF52223 family includes the following features:
• Version 2 ColdFire variable-length RISC processor core
— Static operation
— 32-bit address and data paths on-chip
— Up to 80 MHz processor core frequency
— Sixteen general-purpose, 32-bit data and address registers
— Implements ColdFire ISA_A with extensions to support the user stack pointer register and four new instructions
for improved bit processing (ISA_A+)
— Multiply-Accumulate (MAC) unit with 32-bit accumulator to support 16×16 → 32 or 32×32 → 32 operations
— Illegal instruction decode that allows for 68-Kbyte emulation support
• System debug support
— Real-time trace for determining dynamic execution path
— Background debug mode (BDM) for in-circuit debugging (DEBUG_B+)
— Real-time debug support, with six hardware breakpoints (4 PC, 1 address and 1 data) configurable into a 1- or
2-level trigger
• On-chip memories
— 32-Kbyte dual-ported SRAM on CPU internal bus, supporting core and DMA access with standby power supply
support
— 256 Kbytes of interleaved flash memory supporting 2-1-1-1 accesses
• Power management
— Fully static operation with processor sleep and whole chip stop modes
— Rapid response to interrupts from the low-power sleep mode (wake-up feature)
— Clock enable/disable for each peripheral when not used
— Software controlled disable of external clock output for low-power consumption
• Universal Serial Bus On-The-Go (USB OTG) dual-mode host and device controller
— Full-speed / low-speed host controller
— USB 1.1 and 2.0 compliant full-speed / low speed device controller
— 16 bidirectional end points
— DMA or FIFO data stream interfaces
— Low power consumption
— OTG protocol logic
• Three universal asynchronous/synchronous receiver transmitters (UARTs)
— 16-bit divider for clock generation
— Interrupt control logic with maskable interrupts
— DMA support
— Data formats can be 5, 6, 7 or 8 bits with even, odd, or no parity
— Up to two stop bits in 1/16 increments
— Error-detection capabilities
— Modem support includes request-to-send (RTS) and clear-to-send (CTS) lines for two UARTs
— Transmit and receive FIFO buffers
2
•I
C module
— Interchip bus interface for EEPROMs, LCD controllers, A/D converters, and keypads
— Fully compatible with industry-standard I
— Master and slave modes support multiple masters
2
C bus
MCF52223 Family Configurations
MCF52223 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor 5
MCF52223 Family Configurations
— Automatic interrupt generation with programmable level
• Queued serial peripheral interface (QSPI)
— Full-duplex, three-wire synchronous transfers
— Up to four chip selects available
— Master mode operation only
— Programmable bit rates up to half the CPU clock frequency
— Up to 16 pre-programmed transfers
• Fast analog-to-digital converter (ADC)
— Eight analog input channels
— 12-bit resolution
— Minimum 1.125 μs conversion time
— Simultaneous sampling of two channels for motor control applications
— Single-scan or continuous operation
— Optional interrupts on conversion complete, zero crossing (sign change), or under/over low/high limit
— Unused analog channels can be used as digital I/O
• Four 32-bit timers with DMA support
— 12.5 ns resolution at 80 MHz
— Programmable sources for clock input, including an external clock option
— Programmable prescaler
— Input capture capability with programmable trigger edge on input pin
— Output compare with programmable mode for the output pin
— Free run and restart modes
— Maskable interrupts on input capture or output compare
— DMA trigger capability on input capture or output compare
• Four-channel general purpose timer
— 16-bit architecture
— Programmable prescaler
— Output pulse-widths variable from microseconds to seconds
— Single 16-bit input pulse accumulator
— Toggle-on-overflow feature for pulse-width modulator (PWM) generation
— One dual-mode pulse accumulation channel
• Pulse-width modulation timer
— Operates as eight channels with 8-bit resolution or four channels with 16-bit resolution
— Programmable period and duty cycle
— Programmable enable/disable for each channel
— Software selectable polarity for each channel
— Period and duty cycle are double buffered. Change takes effect when the end of the current period is reached
(PWM counter reaches zero) or when the channel is disabled.
— Programmable center or left aligned outputs on individual channels
— Four clock sources (A, B, SA, and SB) provide for a wide range of frequencies
— Emergency shutdown
• Two periodic interrupt timers (PITs)
— 16-bit counter
— Selectable as free running or count down
• Real-Time Clock (RTC)
MCF52223 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor6
MCF52223 Family Configurations
— Maintains system time-of-day clock
— Provides stopwatch and alarm interrupt functions
• Software watchdog timer
— 32-bit counter
— Low-power mode support
• Clock generation features
— One to 48 MHz crystal, 8 MHz on-chip relaxation oscillator, or external oscillator reference options
— Trimmed relaxation oscillator
— Two to 10 MHz reference frequency for normal PLL mode with a pre-divider programmable from 1 to 8
— System can be clocked from PLL or directly from crystal oscillator or relaxation oscillator
— Low power modes supported
n
—2
(n ≤ 0 ≤ 15) low-power divider for extremely low frequency operation
• Interrupt controller
— Uniquely programmable vectors for all interrupt sources
— Fully programmable level and priority for all peripheral interrupt sources
— Seven external interrupt signals with fixed level and priority
— Unique vector number for each interrupt source
— Ability to mask any individual interrupt source or all interrupt sources (global mask-all)
— Support for hardware and software interrupt acknowledge (IACK) cycles
— Combinatorial path to provide wake-up from low-power modes
• DMA controller
— Four fully programmable channels
— Dual-address transfer support with 8-, 16-, and 32-bit data capability, along with support for 16-byte (4×32-bit)
burst transfers
— Source/destination address pointers that can increment or remain constant
— 24-bit byte transfer counter per channel
— Auto-alignment transfers supported for efficient block movement
— Bursting and cycle steal support
— Software-programmable DMA requesters for the UARTs (3) and 32-bit timers (4)
• Reset
— Separate reset in and reset out signals
— Seven sources of reset:
– Power-on reset (POR)
– External
–Software
– Watchdog
– Loss of clock
– Loss of lock
– Low-voltage detection (LVD)
— Status flag indication of source of last reset
• Chip integration module (CIM)
— System configuration during reset
— Selects one of six clock modes
— Configures output pad drive strength
— Unique part identification number and part revision number
MCF52223 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor 7
MCF52223 Family Configurations
• General purpose I/O interface
— Up to 56 bits of general purpose I/O
— Bit manipulation supported via set/clear functions
— Programmable drive strengths
— Unused peripheral pins may be used as extra GPIO
• JTAG support for system level board testing
1.2.2 V2 Core Overview
The version 2 ColdFire processor core is comprised of two separate pipelines decoupled by an instruction buffer. The two-stage
instruction fetch pipeline (IFP) is responsible for instruction-address generation and instruction fetch. The instruction buffer is
a first-in-first-out (FIFO) buffer that holds prefetched instructions awaiting execution in the operand execution pipeline (OEP).
The OEP includes two pipeline stages. The first stage decodes instructions and selects operands (DSOC); the second stage
(AGEX) performs instruction execution and calculates operand effective addresses, if needed.
The V2 core implements the ColdFire instruction set architecture revision A+ with added support for a separate user stack
pointer register and four new instructions to assist in bit processing. Additionally, the MCF52223 core includes the
multiply-accumulate (MAC) unit for improved signal processing capabilities. The MAC implements a three-stage arithmetic
pipeline, optimized for 16×16 bit operations, with support for one 32-bit accumulator. Supported operands include 16- and
32-bit signed and unsigned integers, signed fractional operands, and a complete set of instructions to process these data types.
The MAC provides support for execution of DSP operations within the context of a single processor at a minimal hardware cost.
1.2.3 Integrated Debug Module
The ColdFire processor core debug interface is provided to support system debugging with low-cost debug and emulator
development tools. Through a standard debug interface, access to debug information and real-time tracing capability is provided
on 100-lead packages. This allows the processor and system to be debugged at full speed without the need for costly in-circuit
emulators.
The on-chip breakpoint resources include a total of nine programmable 32-bit registers: an address and an address mask register,
a data and a data mask register, four PC registers, and one PC mask register. These registers can be accessed through the
dedicated debug serial communication channel or from the processor’s supervisor mode programming model. The breakpoint
registers can be configured to generate triggers by combining the address, data, and PC conditions in a variety of single- or
dual-level definitions. The trigger event can be programmed to generate a processor halt or initiate a debug interrupt exception.
The MCF52223 implements revision B+ of the ColdFire Debug Architecture.
The MCF52223’s interrupt servicing options during emulator mode allow real-time critical interrupt service routines to be
serviced while processing a debug interrupt event. This ensures the system continues to operate even during debugging.
To support program trace, the V2 debug module provides processor status (PST[3:0]) and debug data (DDATA[3:0]) ports.
These buses and the PSTCLK output provide execution status, captured operand data, and branch target addresses defining
processor activity at the CPU’s clock rate. The MCF52223 includes a new debug signal, ALLPST. This signal is the logical
AND of the processor status (PST[3:0]) signals and is useful for detecting when the processor is in a halted state (PST[3:0] =
1111).
The full debug/trace interface is available only on the 100-pin packages. However, every product features the dedicated debug
serial communication channel (DSI, DSO, DSCLK) and the ALLPST signal.
1.2.4 JTAG
The MCF52223 supports circuit board test strategies based on the Test Technology Committee of IEEE and the Joint Test Action
Group (JTAG). The test logic includes a test access port (TAP) consisting of a 16-state controller, an instruction register, and
three test registers (a 1-bit bypass register, a 112-bit boundary-scan register, and a 32-bit ID register). The boundary scan register
MCF52223 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor8
MCF52223 Family Configurations
links the device’s pins into one shift register. Test logic, implemented using static logic design, is independent of the device
system logic.
The MCF52223 implementation can:
• Perform boundary-scan operations to test circuit board electrical continuity
• Sample MCF52223 system pins during operation and transparently shift out the result in the boundary scan register
• Bypass the MCF52223 for a given circuit board test by effectively reducing the boundary-scan register to a single bit
• Disable the output drive to pins during circuit-board testing
• Drive output pins to stable levels
1.2.5 On-Chip Memories
1.2.5.1 SRAM
The dual-ported SRAM module provides a general-purpose 32-Kbyte memory block that the ColdFire core can access in a
single cycle. The location of the memory block can be set to any 32-Kbyte boundary within the 4-Gbyte address space. This
memory is ideal for storing critical code or data structures and for use as the system stack. Because the SRAM module is
physically connected to the processor's high-speed local bus, it can quickly service core-initiated accesses or
memory-referencing commands from the debug module.
The SRAM module is also accessible by the DMA. The dual-ported nature of the SRAM makes it ideal for implementing
applications with double-buffer schemes, where the processor and a DMA device operate in alternate regions of the SRAM to
maximize system performance.
1.2.5.2 Flash Memory
The ColdFire flash module (CFM) is a non-volatile memory (NVM) module that connects to the processor’s high-speed local
bus. The CFM is constructed with four banks of 32-Kbyte×16-bit flash memory arrays to generate 256 Kbytes of 32-bit flash
memory. These electrically erasable and programmable arrays serve as non-volatile program and data memory. The flash
memory is ideal for program and data storage for single-chip applications, allowing for field reprogramming without requiring
an external high voltage source. The CFM interfaces to the ColdFire core through an optimized read-only memory controller
that supports interleaved accesses from the 2-cycle flash memory arrays. A backdoor mapping of the flash memory is used for
all program, erase, and verify operations, as well as providing a read datapath for the DMA. Flash memory may also be
programmed via the EzPort, which is a serial flash memory programming interface that allows the flash memory to be read,
erased and programmed by an external controller in a format compatible with most SPI bus flash memory chips.
1.2.6 Power Management
The MCF52223 incorporates several low-power modes of operation entered under program control and exited by several
external trigger events. An integrated power-on reset (POR) circuit monitors the input supply and forces an MCU reset as the
supply voltage rises. The low voltage detector (LVD) monitors the supply voltage and is configurable to force a reset or interrupt
condition if it falls below the LVD trip point. The RAM standby switch provides power to RAM when the supply voltage to the
chip falls below the standby battery voltage.
1.2.7 USB On-The-Go Controller
The MCF52223 includes a Universal Serial Bus On-The-Go (USB OTG) dual-mode controller. USB is a popular standard for
connecting peripherals and portable consumer electronic devices such as digital cameras and handheld computers to host PCs.
The OTG supplement to the USB specification extends USB to peer-to-peer application, enabling devices to connect directly
to each other without the need for a PC. The dual-mode controller on the MCF52223 can act as a USB OTG host and as a USB
device. It also supports full-speed and low-speed modes.
MCF52223 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor 9
MCF52223 Family Configurations
1.2.8 UARTs
The MCF52223 has three full-duplex UARTs that function independently. The three UARTs can be clocked by the system bus
clock, eliminating the need for an external clock source. On smaller packages, the third UART is multiplexed with other digital
I/O functions.
1.2.9 I2C Bus
The I2C bus is a two-wire, bidirectional serial bus that provides a simple, efficient method of data exchange and minimizes the
interconnection between devices. This bus is suitable for applications requiring occasional communications over a short
distance between many devices.
1.2.10 QSPI
The queued serial peripheral interface (QSPI) provides a synchronous serial peripheral interface with queued transfer capability.
It allows up to 16 transfers to be queued at once, minimizing the need for CPU intervention between transfers.
1.2.11 Fast ADC
The fast ADC consists of an eight-channel input select multiplexer and two independent sample and hold (S/H) circuits feeding
separate 12-bit ADCs. The two separate converters store their results in accessible buffers for further processing.
The ADC can be configured to perform a single scan and halt, a scan when triggered, or a programmed scan sequence repeatedly
until manually stopped.
The ADC can be configured for sequential or simultaneous conversion. When configured for sequential conversions, up to eight
channels can be sampled and stored in any order specified by the channel list register. Both ADCs may be required during a
scan, depending on the inputs to be sampled.
During a simultaneous conversion, both S/H circuits are used to capture two different channels at the same time. This
configuration requires that a single channel may not be sampled by both S/H circuits simultaneously.
Optional interrupts can be generated at the end of the scan sequence if a channel is out of range (measures below the low
threshold limit or above the high threshold limit set in the limit registers) or at several different zero crossing conditions.
1.2.12 DMA Timers (DTIM0–DTIM3)
There are four independent, DMA transfer capable 32-bit timers (DTIM0, DTIM1, DTIM2, and DTIM3) on the MCF52223.
Each module incorporates a 32-bit timer with a separate register set for configuration and control. The timers can be configured
to operate from the system clock or from an external clock source using one of the DTINn signals. If the system clock is selected,
it can be divided by 16 or 1. The input clock is further divided by a user-programmable 8-bit prescaler that clocks the actual
timer counter register (TCRn). Each of these timers can be configured for input capture or reference (output) compare mode.
Timer events may optionally cause interrupt requests or DMA transfers.
1.2.13 General Purpose Timer (GPT)
The general purpose timer (GPT) is a four-channel timer module consisting of a 16-bit programmable counter driven by a
seven-stage programmable prescaler. Each of the four channels can be configured for input capture or output compare.
Additionally, channel three, can be configured as a pulse accumulator.
A timer overflow function allows software to extend the timing capability of the system beyond the 16-bit range of the counter.
The input capture and output compare functions allow simultaneous input waveform measurements and output waveform
generation. The input capture function can capture the time of a selected transition edge. The output compare function can
MCF52223 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor10
MCF52223 Family Configurations
generate output waveforms and timer software delays. The 16-bit pulse accumulator can operate as a simple event counter or a
gated time accumulator.
1.2.14 Periodic Interrupt Timers (PIT0 and PIT1)
The two periodic interrupt timers (PIT0 and PIT1) are 16-bit timers that provide interrupts at regular intervals with minimal
processor intervention. Each timer can count down from the value written in its PIT modulus register or it can be a free-running
down-counter.
1.2.15 Real-Time Clock (RTC)
The Real-Time Clock (RTC) module maintains the system (time-of-day) clock and provides stopwatch, alarm, and interrupt
functions. It includes full clock features: seconds, minutes, hours, days and supports a host of time-of-day interrupt functions
along with an alarm interrupt.
1.2.16 Pulse-Width Modulation (PWM) Timers
The MCF52223 has an 8-channel, 8-bit PWM timer. Each channel has a programmable period and duty cycle as well as a
dedicated counter. Each of the modulators can create independent continuous waveforms with software-selectable duty rates
from 0% to 100%. The PWM outputs have programmable polarity, and can be programmed as left aligned outputs or center
aligned outputs. For higher period and duty cycle resolution, each pair of adjacent channels ([7:6], [5:4], [3:2], and [1:0]) can
be concatenated to form a single 16-bit channel. The module can, therefore, be configured to support 8/0, 6/1, 4/2, 2/3, or 0/4
8-/16-bit channels.
1.2.17 Software Watchdog Timer
The watchdog timer is a 32-bit timer that facilitates recovery from runaway code. The watchdog counter is a free-running
down-counter that generates a reset on underflow. To prevent a reset, software must periodically restart the countdown.
1.2.18 Phase-Locked Loop (PLL)
The clock module contains a crystal oscillator, 8 MHz on-chip relaxation oscillator (OCO), phase-locked loop (PLL), reduced
frequency divider (RFD), low-power divider status/control registers, and control logic. To improve noise immunity, the PLL,
crystal oscillator, and relaxation oscillator have their own power supply inputs: VDDPLL and VSSPLL. All other circuits are
powered by the normal supply pins, VDD and VSS.
1.2.19 Interrupt Controller (INTC)
The MCF52223 has a single interrupt controller that supports up to 63 interrupt sources. There are 56 programmable sources,
49 of which are assigned to unique peripheral interrupt requests. The remaining seven sources are unassigned and may be used
for software interrupt requests.
1.2.20 DMA Controller
The direct memory access (DMA) controller provides an efficient way to move blocks of data with minimal processor
intervention. It has four channels that allow byte, word, longword, or 16-byte burst line transfers. These transfers are triggered
by software explicitly setting a DCRn[START] bit or by the occurrence of certain UART or DMA timer events.
MCF52223 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor 11
MCF52223 Family Configurations
1.2.21 Reset
The reset controller determines the source of reset, asserts the appropriate reset signals to the system, and keeps track of what
caused the last reset. There are seven sources of reset:
• External reset input
• Power-on reset (POR)
• Watchdog timer
• Phase locked-loop (PLL) loss of lock
• PLL loss of clock
•Software
• Low-voltage detector (LVD)
Control of the LVD and its associated reset and interrupt are managed by the reset controller. Other registers provide status flags
indicating the last source of reset and a control bit for software assertion of the RSTO
pin.
1.2.22 GPIO
Nearly all pins on the MCF52223 have general purpose I/O capability and are grouped into 8-bit ports. Some ports do not use
all eight bits. Each port has registers that configure, monitor, and control the port pins.
1.2.23 Part Numbers and Packaging
This product is RoHS-compliant. Refer to the product page at freescale.com or contact your sales office for up-to-date RoHS
information.
Part Number Summary
Part Number Flash / SRAM Key Features Package Speed
2
MCF52221 128 Kbytes / 16 Kbytes 3 UARTs, I
USBOTG, 16-/32-bit/PWM Timers
MCF52223 256 Kbytes / 32 Kbytes 3 UARTs, I
USBOTG, 16-/32-bit/PWM Timers
C, QSPI, A/D, DMA,
2
C, QSPI, A/D, DMA,
64 LQFP
81 MAPBGA
81 MAPBGA
100 LQFP
66, 80 MHz
66, 80 MHz
Figure 2 shows the pinout configuration for the 100 LQFP.
MCF52223 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor12
MCF52223 Family Configurations
AN5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
V
DD
V
DD
V
SS
URTS1
TEST
UCTS0
UTXD0
URTS0
SCL
SDA
QSPI_CS3
QSPI_CS2
V
DD
V
SS
QSPI-DIN
QSPI_DOUT
QSPI_CLK
QSPI_CS1
QSPI_CS0
RCON
V
DD
V
DD
V
SS
100 LQFP
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
V
SS
V
DDPLL
EXTAL
XTAL
V
SSPLL
PST3
PST2
V
DD
V
SS
PST1
PST0
PSTCLK
GPT3
V
DD
USB
USB_DM
USB_DP
V
SS
USB
GPT2
V
DD
V
SS
V
STBY
AN6
AN7
100
9998979695949392919089888786858483828180797877
76
URXD1
UTXD1
UCTS1
RSTO
RSTI
IRQ7
IRQ6
VDDVSSIRQ5
IRQ4
IRQ3
IRQ2
IRQ1
ALLPST
DDATA3
DDATA2
VSSVDDDSO
DSI
DDATA1
DDATA0
BKPT
26272829303132333435363738394041424344454647484950
JTAG_EN
UCTS2
URXD2
UTXD2
URTS2
DTIN2
DTIN3
GPT1
V
DD
V
SS
DTIN0
DTIN1
GPT0
CLKMOD1
CLKMOD0
V
DD
V
SS
AN0
AN1
AN2
AN3
V
SSA
V
RL
V
RH
V
DDA
V
SS
URXD0
AN4
DSCLK
Figure 2. 100 LQFP Pin Assignments
MCF52223 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor 13
MCF52223 Family Configurations
V
SS
UTXD1 RSTI IRQ5 IRQ3 ALLPST TDO TMS V
SS
A
123456789
URTS1 URXD1 RSTO IRQ6 IRQ2 TRST TDI VDDPLL EXTALB
UCTS0 TEST UCTS1 IRQ7 IRQ4 IRQ1 TCLK VSSPLL XTALC
URXD0 UTXD0 URTS0 V
SS
V
DD
V
SS
GPT3 VDDUSB USB_DMD
SCL SDA V
DD
V
DD
V
DD
V
DD
V
DD
GPT2 USB_DPE
QSPI_CS3 QSPI_CS2 QSPI_DIN V
SS
V
DD
V
SS
VSSUSB V
STBY
AN4F
QSPI_DOUT QSPI_CLK RCON DTIN1 CLKMOD0 AN2 AN3 AN5 AN6G
QSPI_CS0 QSPI_CS1 DTIN3 DTIN0 CLKMOD1 AN1 V
SSA
V
DDA
AN7H
V
SS
JTAG_EN DTIN2 GPT1 GPT0 AN0 V
RL
V
RH
V
SSA
J
Figure 3 shows the pinout configuration for the 81 MAPBGA.
Figure 3. 81 MAPBGA Pin Assignments
MCF52223 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor14
Figure 4 shows the pinout configuration for the 64 LQFP and 64 QFN.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
V
DD
URTS1
TEST
UCTS0
URXD0
UTXD0
SCL
SDA
V
DD
V
SS
QSPI_DIN
QSPI_DOUT
QSPI_CLK
QSPI_CS0
RCON
64-Pin Packages
646362616059585756555453525150
49
V
SS
URXD1
UTXD1
UCTS1
RSTO
RSTI
IRQ7
IRQ4
IRQ1
ALLPST
DSCLK
VSSVDDDSO
DSI
BKPT
URTS0
171819202122232425262728293031
32
JTAG_EN
DTIN2
DTIN3
V
DD
V
SS
DTIN0
DTIN1
CLKMOD0
AN0
AN1
AN2
AN3
V
SSA
V
RL
V
RH
V
DDA
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
V
DDPLL
EXTAL
XTAL
V
SSPLL
PSTCLK
V
DD
USB
USB_DM
USB_DP
V
SS
USB
V
DD
V
SS
V
STBY
AN4
AN5
AN6
AN7
Figure 4. 64 LQFP and 64 QFN Pin Assignments
MCF52223 Family Configurations
Table 2 shows the pin functions by primary and alternate purpose, and illustrates which packages contain each pin.
MCF52223 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor 15
Table 2. Pin Functions by Primary and Alternate Purpose
MCF52223 Family Configurations
Pin
Group
Primary
Function
Secondary
Function
Ter tia r y
Function
Quaternary
Function
Drive
Strength /
Control
1
Slew Rate /
Control
1
Pull-up /
Pull-down
2
100 LQFP
Pin on
Pin on 81
MAPBGA
Pin on 64
LQFP/QFN
ADC AN7 — — GPIO Low FAST — 51 H9 33
AN6 — — GPIO Low FAST — 52 G9 34
AN5 — — GPIO Low FAST — 53 G8 35
AN4 — — GPIO Low FAST — 54 F9 36
AN3 — — GPIO Low FAST — 46 G7 28
MCF52223 ColdFire Microcontroller, Rev. 2
AN2 — — GPIO Low FAST — 45 G6 27
AN1 — — GPIO Low FAST — 44 H6 26
AN0 — — GPIO Low FAST — 43 J6 25
SYNCA
SYNCB
3
3
— — —N/AN/A————
— — —N/AN/A————
VDDA — — — N/A N/A — 50 H8 32
VSSA — — — N/A N/A — 47 H7, J9 29
VRH — — — N/A N/A — 49 J8 31
VRL — — — N/A N/A — 48 J7 30
Clock
Generation
EXTAL — — — N/A N/A — 73 B9 47
XTAL — — — N/A N/A — 72 C9 46
Freescale Semiconductor16
VDDPLL — — — N/A N/A — 74 B8 48
VSSPLL — — — N/A N/A — 71 C8 45
Debug Data ALLPST — — — High FAST — 86 A6 55
DDATA[3:0] — — GPIO High FAST — 84,83,78,77 — —
PST[3:0] — — GPIO High FAST — 70,69,66,65 — —
2
C SCL USB_DMI UTXD2 GPIO PDSR[0] PSRR[0] pull-up
I
SDA USB_DPI URXD2 GPIO PDSR[0] PSRR[0] pull-up
4
4
10 E1 8
11 E2 9
Freescale Semiconductor 17
Table 2. Pin Functions by Primary and Alternate Purpose (continued)
Pin
Group
Primary
Function
Secondary
Function
Ter tia r y
Function
Quaternary
Function
Drive
Strength /
Control
1
Slew Rate /
Control
1
Pull-up /
Pull-down
2
100 LQFP
Pin on
Pin on 81
MAPBGA
Pin on 64
LQFP/QFN
Interrupts IRQ7 — —GPIOLowFAST—95C458
IRQ6
IRQ5
— USB_ID GPIO Low FAST — 94 B4 —
— USB_VBUSV
GPIO Low FAST — 91 A4 —
LD
IRQ4
— USB_PULLU
GPIOLowFAST—90C557
P
MCF52223 ColdFire Microcontroller, Rev. 2
IRQ3
— USB_SESSE
GPIO Low FAST — 89 A5 —
ND
IRQ2
— USB_SESSV
GPIO Low FAST — 88 B5 —
LD
IRQ1
SYNCA USB_ALT_CL
GPIO High FAST pull-up
4
87 C6 56
K
JTAG/BDM JTAG_EN — — — N/A N/A pull-down 26 J2 17
TCLK/
CLKOUT — — High FAST pull-up
5
64 C7 44
PSTCLK
TDI/DSI — — — N/A N/A pull-up
5
79 B7 50
TDO/DSO— — —HighFAST—80A751
TMS
— — — N/A N/A pull-up
5
76 A8 49
/BKPT
5
85 B6 54
MCF52223 Family Configurations
6
6
40 G5 24
39 H5 —
Mode
Selection
TRST
— — — N/A N/A pull-up
/DSCLK
CLKMOD0 — — — N/A N/A pull-down
6
CLKMOD1 — — — N/A N/A pull-down
RCON
EZPCS
/
— — — N/A N/A pull-up 21 G3 16
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