Revision 0.2 (Confidential)
7
www.national.com
LMX9820ADEV
: LMX9820A
Simpl
y
Blue Module Kit User’
s
Guide
2.0
Board Components and Pin Assignments
A summary of the configuration and selection jumpers is
provided in the tables that follow. Reference both the sche-
matic and BOM (Bill of Materials) (included on the CD in
the kit) and also available on the Wireless Developer’s web
site.
2.1
TEXAS MOTHERBOARD
•
Table 2-1 lists the primary devices on the board.
•
Table 2-2 lists the connectors, configuration, and selec-
tion jumpers.
•
Table 2-3 lists the switches and LEDs.
Table 2-1. Texas Motherboard Primary Devices
Device #
Name
U2
National LP2986 Low-Dropout Voltage Regulator - IOVCC
U4
National LP2986 Low-Dropout Voltage Regulator - UVCC
U5
National LP2986 Low-Dropout Voltage Regulator - VCC
U46
Maxim MAX3245 1 Mbps High Speed UART Driver
U55
Toshiba TC7WH14FU Schmitt Inverter - Used for POR (Power On Reset) circuitry
Table 2-2. Connectors, Configuration, and Selection Jumpers Summary
Jumper #
Name
Details
P3
DP9 Serial Connector – Male
Table 2-4 on page 8
JP1
JTAG Connector (10x2)
Table 2-5 on page 8
J1
50-pin Connector to Austin Daughterboard
Table 2-23 on page 11
J4
Test Points and General Purpose Outputs
Table 2-6 on page 8
J5
USB (
not
used for LMX9820A)
Table 2-7 on page 8
J6
ENV0
Table 2-8 on page 8 and Table 2-10 on page 9
J7
ENV1
Table 2-9 on page 8 and Table 2-10 on page 9
J9/J22
GND
GND
J10
LSTAT_0
Internal Use Only
J11
LSTAT_1
Internal Use Only
J12
Audio Codec Header (4x2)
Table 2-12 on page 9
J14
USB or DC Power Supply Jumper
Table 2-13 on page 9
J15
DC Power Jack
Figure 2-2 on page 9
J16
ISEL1
Section 2.1.9 on page 9
J17
ISEL2
Section 2.1.9 on page 9
J23
Audio Codec Optional Test Point - User defined
(
not
used for LMX9820A)
Table 2-12 on page 9
Table 2-3. Switches and LEDs
Name
Description
SW1
Reset# - Reset
D1
LED for LSTAT_0 (
not
used for LMX9820A)
D2
LED for LSTAT_1 - When illuminated, firmware has loaded properly
D3
LED for VCC
D4
LED for IOVCC
D5
LED for UVCC
D6
LED for TX/RX Activity
