DataSheet.es i.MX23 Hoja de datos PDF



PDF i.MX23 Datasheet ( Hoja de datos )

Número de pieza i.MX23
Descripción Applications Processor
Fabricantes Freescale Semiconductor 
Logotipo Freescale Semiconductor Logotipo
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i.MX23 datasheet

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i.MX23 pdf
Paragraph
Number
Contents
Title
Page
Number
4.4 Clock Frequency Management ........................................................................................ 4-9
4.5 Analog Clock Control ...................................................................................................... 4-9
4.6 CPU and EMI Clock Programming ................................................................................. 4-9
4.7 Chip Reset...................................................................................................................... 4-10
4.8 Programmable Registers ................................................................................................ 4-11
5.1
5.2
5.2.1
5.2.2
5.2.3
5.2.4
5.3
5.4
Chapter 5
Interrupt Collector
Overview.......................................................................................................................... 5-1
Operation ......................................................................................................................... 5-2
Nesting of Multi-Level IRQ Interrupts........................................................................ 5-4
FIQ Generation ............................................................................................................ 5-6
Interrupt Sources.......................................................................................................... 5-6
CPU Wait-for-Interrupt Mode...................................................................................... 5-9
Behavior During Reset................................................................................................... 5-10
Programmable Registers ................................................................................................ 5-10
6.1
6.2
6.3
6.3.1
6.3.2
6.3.3
6.3.4
6.4
Chapter 6
Digital Control and On-Chip RAM
Overview.......................................................................................................................... 6-1
SRAM Controls ............................................................................................................... 6-2
Miscellaneous Controls.................................................................................................... 6-3
Performance Monitoring.............................................................................................. 6-3
High-Entropy PRN Seed.............................................................................................. 6-4
Write-Once Register .................................................................................................... 6-4
Microseconds Counter ................................................................................................. 6-4
Programmable Registers .................................................................................................. 6-4
7.1
7.2
7.2.1
7.2.2
7.2.3
7.2.4
7.3
7.4
Chapter 7
On-Chip OTP (OCOTP) Controller
Overview.......................................................................................................................... 7-1
Operation ......................................................................................................................... 7-2
Software Read Sequence ............................................................................................. 7-4
Software Write Sequence............................................................................................. 7-5
Write Postamble........................................................................................................... 7-6
Shadow Registers and Hardware Capability Bus ........................................................ 7-6
Behavior During Reset..................................................................................................... 7-7
Programmable Registers .................................................................................................. 7-7
Freescale Semiconductor
i.MX23 Applications Processor Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
iii

5 Page

i.MX23 arduino
Paragraph
Number
Contents
Title
Chapter 16
Data Co-Processor (DCP)
Page
Number
16.1
16.1.1
16.2
16.2.1
16.2.2
16.2.2.1
16.2.2.2
16.2.2.3
16.2.3
16.2.4
16.2.4.1
16.2.4.2
16.2.5
16.2.5.1
16.2.5.2
16.2.5.3
16.2.5.4
16.2.5.4.1
16.2.5.4.2
16.2.5.4.3
16.2.5.4.4
16.2.5.4.5
16.2.5.4.6
16.2.5.4.7
16.2.5.4.8
16.2.5.4.9
16.2.6
16.2.6.1
16.2.6.2
16.2.6.3
16.2.6.4
16.3
Overview........................................................................................................................ 16-1
DCP Limitations for Software ................................................................................... 16-3
Operation ....................................................................................................................... 16-4
Memory Copy, Blit, and Fill Functionality................................................................ 16-4
Advanced Encryption Standard (AES) ...................................................................... 16-5
Key Storage............................................................................................................ 16-5
OTP Key ................................................................................................................ 16-5
Encryption Modes.................................................................................................. 16-5
Hashing ...................................................................................................................... 16-7
Managing DCP Channel Arbitration and Performance ............................................. 16-7
DCP Arbitration..................................................................................................... 16-8
Channel Recovery Timers ..................................................................................... 16-8
Programming Channel Operations............................................................................. 16-9
Virtual Channels .................................................................................................... 16-9
Context Switching ............................................................................................... 16-10
Working with Semaphores................................................................................... 16-11
Work Packet Structure ......................................................................................... 16-11
Next Command Address Field ........................................................................ 16-12
Control0 Field.................................................................................................. 16-12
Control1 Field.................................................................................................. 16-14
Source Buffer................................................................................................... 16-15
Destination Buffer ........................................................................................... 16-15
Buffer Size Field.............................................................................................. 16-15
Payload Pointer................................................................................................ 16-16
Status................................................................................................................ 16-16
Payload ............................................................................................................ 16-17
Programming Other DCP Functions........................................................................ 16-17
Basic Memory Copy Programming Example...................................................... 16-17
Basic Hash Operation Programming Example .................................................... 16-18
Basic Cipher Operation Programming Example ................................................. 16-20
Multi-Buffer Scatter/Gather Cipher and Hash
Operation Programming Example ................................................................... 16-21
Programmable Registers .............................................................................................. 16-24
Chapter 17
Pixel Pipeline (PXP)
17.1 Overview........................................................................................................................ 17-1
i.MX23 Applications Processor Reference Manual, Rev. 1
viii Freescale Semiconductor
Preliminary—Subject to Change Without Notice

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