Freescale-semiconductor i.MX27 PDK 1.0 Bedienungsanleitung Seite 13
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i.MX27 PDK 1.0 Hardware User's Guide, Rev. 1.0 Freescale Semiconductor
2-2
Table 2-1 Debug Board, Top Components
Component Description
S1 Power button, connected to the ON1B input of the MC13783 through the 500 pin connector.
The line is pulled up, and pushing it grounds the line. If MC13783 is in Off, User Off or
Memory Hold Mode, the board can be powered on by pushing the button
S2 Reset button, which resets the Debug board
S3 System reset switch, connected to the RESETB to MX27. The line is pulled up, and pushing it
grounds the line.
S4 Power on switch, which powers up the Debug board when set to 1.
J1 10/100 Base T Ethernet RJ45 Connector
J2 5.0V DC power connector
J3 Current measure connector; measures the current at various points of CPU Engine and
Personality board from the connector
F1 Re-settable fuse; re-settable over-current protection
D1 – D8 LEDs for CPLD debug
D9 LED for debug board 3.3V power; the LED will be bright when debug 3.3V is power on
D11 LED for DC power supply; the LED will be bright when 5.0V DC power is supplied
P1 WEIM Address measure connector; can support CodeTest Interface Probe
P2 WEIM Data measure connector; can support CodeTest Interface Probe
BT1, BT2 Test buttons for CPLD
CN1 i.MX27 JTAG connector
CN2 Debug board CPLD JTAG connector
CN3 Personality board CPLD JTAG connector (Reserved)
CN74 500 pins connector to Personality board
CON4 UART (DCE) DB9 female connector
Enable switch; the switch designation settings follow.
ON Serial port UART (DTE) CON3 is selected SW4-1 UART Port Select
OFF Serial port UART (DCE) CON4 is selected
ON Enable NorFlash on Debug board SW4-2 NorFlash Enable
OFF Disable Norflash on Debug board
ON Power supply to three boards
SW4
SW4-8 Power Enable
OFF Power supply to Debug board only
Boot mode setting switches; SW5 to SW10 settings determine where the processor begins
program execution; the valid combinations of the switch settings follow.
Boot mode device SW5 Boot4
SW6
Boot3
SW7
Boot2
SW8
Boot1
SW9
Boot0
SW10
UART/USB Bootloader X 0 0 0 0 0
SW5 – SW10
8-bit NAND Flash
(2KB page) Ext
X 0 0 0 1 0
- User's Guide 1
- How to Reach Us: 2
- About This Book 5
- Audience 5
- Organization 5
- Conventions 6
- Chapter 1 8
- Introduction 8
- 1.1 i.MX27 3-Stack Features 9
- Table 1-1 Specifications 11
- Chapter 2 12
- 2.3 CPU Board Connector 17
- Chapter 3 19
- Build the Platform 19
- Demonstration mode: 25
- Functional Operation 26
- Chapter 4 26
- 4.2 3-Stack Memory Map 28
- 4.3 CPLD on the Debug Board 29
- 4.3.3 Programming the CPLD 30
- 4.4 i.MX27 GPIO Grouping 32
- Chapter 5 33
- Connectors and Signals 33
- Signal Pin Description 37
- 5.2 TV/Headphone Jack 48
- Headphone_L 49
- Headphone_R 49
- 5.3 LCD Connector 50
- 5.4 Keypad 52
- 5.6 Battery Operation 53
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