User's Manual
Table Of Contents
- About This Book
- Chapter 1 Safety Information
- Chapter 2 1322x Network Node Module Overview and Description
- Chapter 3 System Overview and Functional Block Descriptions
- Chapter 4 Interface Locations and Pinouts
- 4.1 Overview
- 4.2 Power Management
- 4.3 RF Circuitry
- 4.4 USB Connector (“B” Receptacle)
- 4.5 LEDs, Switch, Buttons and Joystick
- 4.6 LCD Connector
- 4.7 Debug/Development Connectors
- 4.8 Audio Subsystem Connections
- 4.9 GPIO Connector
- 4.10 FLASH Memory Recovery Jumpers and Erase
- 4.11 ADC Voltage References
- 4.12 Jumper Selection
- Chapter 5 Schematic, Board Layout, and Bill of Material
Interface Locations and Pinouts
1322x Network Node Reference Manual, Rev. 1.1
4-10 Freescale Semiconductor
Figure 4-6. ADC Voltage 1.5 Vdc Voltage Reference
4.12 Jumper Selection
Table 4-6 lists all the possible jumper selections for the Network Node. The jumpers available on the board
are as follows:
• J10 - used to select audio output source
• J14 - used to disable LCD data buffer if GPIO used with connector J2 (GPIO Interface)
• J18 - Sets fixed ADC reference voltage
• J19, J20 - used to clear MC1322x onboard FLASH. See Table 4-6.
Table 4-6. Network Node Jumper Selection
Pin
Header
Pin Number
Connection
Description
Default
Setting
J10 1-2
2-3
Connect to enable audio path from DAC
Connect to enable audio path from PWM
Not mounted
Mounted
J14 1-2 Connect to disable the LCD data bus buffer Not mounted
J18 1-2 Connect to enable ADC 1.5V reference Not mounted
J19, J20 1-2, 1-2 Connect both to recover/clear FLASH.
See Section 4.10, “FLASH Memory Recovery Jumpers and Erase”
Not mounted
1.5V
R1
10K
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
U17
LM285M
R121
24.9K
1%
R120
120K
1%
1
2
J18
HDR_2X1
Not Mounted
VCC
ADC1_VREFH