i.MX23 Datasheet PDF - Freescale Semiconductor

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i.MX23
Freescale Semiconductor

Part Number i.MX23
Description Applications Processor
Page 30 Pages


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i.MX23 Applications Processor
Reference Manual
IMX23RM
Rev. 1
11/2009
Preliminary—Subject to Change Without Notice



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© Freescale Semiconductor, Inc., 2009. All rights reserved.
Document Number: IMX23RM
Rev. 1, 11/2009
Preliminary—Subject to Change Without Notice



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Paragraph
Number
Contents
Title
Co nt en ts
Page
Number
Chapter 1
Product Overview
1.1
1.2
1.2.1
1.2.2
1.2.2.1
1.2.2.2
1.2.2.3
1.2.3
1.2.4
1.2.5
1.2.6
1.2.7
1.2.8
1.2.9
1.2.10
1.2.11
1.2.12
1.2.12.1
1.2.12.2
1.2.13
1.2.14
1.2.15
1.2.16
1.2.17
1.2.18
1.2.19
1.2.19.1
1.2.19.2
1.2.19.3
1.2.19.4
1.2.20
1.2.21
1.2.22
1.2.23
1.2.24
1.2.25
Hardware Features ........................................................................................................... 1-2
i.MX23 Product Features ................................................................................................. 1-5
ARM 926 Processor Core ............................................................................................ 1-7
System Buses ............................................................................................................... 1-7
AXI Bus ................................................................................................................... 1-9
AHB Bus.................................................................................................................. 1-9
APB Buses ............................................................................................................... 1-9
On-Chip RAM and ROM .......................................................................................... 1-10
External Memory Interface........................................................................................ 1-10
On-Chip One-Time-Programmable (OCOTP) ROM ................................................ 1-12
Interrupt Collector...................................................................................................... 1-12
DMA Controller......................................................................................................... 1-12
Clock Generation Subsystem..................................................................................... 1-13
Power Management Unit ........................................................................................... 1-13
USB Interface ............................................................................................................ 1-14
General-Purpose Media Interface (GPMI) ................................................................ 1-15
Hardware Acceleration for ECC for Robust External Storage .................................. 1-15
Reed-Solomon ECC Engine .................................................................................. 1-16
Bose Ray-Choudhury Hocquenghem ECC Engine ............................................... 1-16
Data Co-Processor (DCP)—Memory Copy, Crypto,
and Color-Space Converter.................................................................................... 1-17
Mixed Signal Audio Subsystem ................................................................................ 1-17
Master Digital Control Unit (DIGCTL)..................................................................... 1-19
Synchronous Serial Port (SSP) .................................................................................. 1-19
I2C Interface............................................................................................................... 1-19
General-Purpose Input/Output (GPIO)...................................................................... 1-19
Display Processing..................................................................................................... 1-19
Display Controller / LCD Interface (LCDIF)........................................................ 1-20
Pixel Processing Pipeline (PXP)............................................................................ 1-21
PAL/NTSC TV-Encoder ........................................................................................ 1-21
Video DAC ............................................................................................................ 1-22
SPDIF Transmitter ..................................................................................................... 1-22
Dual Serial Audio Interfaces...................................................................................... 1-22
Timers and Rotary Decoder ....................................................................................... 1-22
UARTs ....................................................................................................................... 1-22
Low-Resolution ADC, Touch-Screen Interface, and Temperature Sensor................ 1-23
Pulse Width Modulator (PWM) Controller ............................................................... 1-23
Freescale Semiconductor
i.MX23 Applications Processor Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
i



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Paragraph
Number
1.2.26
Contents
Title
Page
Number
Real-Time Clock, Alarm, Watchdog, Persistent Bits................................................. 1-24
2.1
2.2
2.3
2.3.1
2.4
2.4.1
2.4.2
2.4.3
Chapter 2
Characteristics and Specifications
Absolute Maximum Ratings ............................................................................................ 2-1
Recommended Operating Conditions .............................................................................. 2-2
DC Characteristics ........................................................................................................... 2-4
Recommended Operating Conditions for Specific Clock Targets............................... 2-9
AC Characteristics ......................................................................................................... 2-12
EMI Electrical Specifications .................................................................................... 2-12
I2C Electrical Specifications...................................................................................... 2-14
LCD AC Output Electrical Specifications................................................................. 2-15
3.1
3.2
3.2.1
3.2.2
3.2.3
3.3
Chapter 3
ARM CPU Complex
ARM 926 Processor Core ................................................................................................ 3-1
JTAG Debugger ............................................................................................................... 3-3
JTAG READ ID........................................................................................................... 3-3
JTAG Hardware Reset ................................................................................................. 3-3
JTAG Interaction with CPUCLK................................................................................. 3-4
Embedded Trace Macrocell (ETM) Interface (169BGA-only) ....................................... 3-4
4.1
4.2
4.2.1
4.2.2
4.2.3
4.2.3.1
4.2.3.2
4.2.3.3
4.3
4.3.1
4.3.2
4.3.2.1
4.3.2.1.1
4.3.3
Chapter 4
Clock Generation and Control
Overview.......................................................................................................................... 4-1
Clock Structure ................................................................................................................ 4-1
Table of System Clocks ............................................................................................... 4-2
Logical Diagram of Clock Domains............................................................................ 4-4
Clock Domain Description .......................................................................................... 4-5
CLK_P, CLK_H....................................................................................................... 4-5
CLK_EMI ................................................................................................................ 4-6
System Clocks ......................................................................................................... 4-6
CLKCTRL Digital Clock Divider ................................................................................... 4-6
Integer Clock Divide Mode ......................................................................................... 4-6
Fractional Clock Divide Mode .................................................................................... 4-7
Fractional Clock Divide Example, Divide by 3.5.................................................... 4-7
Fractional ClockDivide Example, Divide by 3/8 ................................................ 4-8
Gated Clock Divide Mode ........................................................................................... 4-8
i.MX23 Applications Processor Reference Manual, Rev. 1
ii Freescale Semiconductor
Preliminary—Subject to Change Without Notice



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