LPC-H3131 Olimex Ltd., LPC-H3131 Datasheet - Page 9

• Manufacturer Part Number: LPC-H3131
• Description: Microcontroller & Microprocessor Development Tools HDR BRD FOR LPC3131
• Manufacturer: Olimex Ltd.

Specifications of LPC-H3131

• Processor To Be Evaluated: LPC3131
• Data Bus Width: 32 bit
• Interface Type: USB, I2S, SPI, I2C, UART
• Operating Supply Voltage: 1.2 V
• Core Architecture: ARM
• Cpu Core: ARM926EJ-S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

POWER SUPPLY CIRCUIT
RESET CIRCUIT
CLOCK CIRCUIT
JUMPER DESCRIPTION
JTAG_SEL
BOOT
JTAG selection. Controls output function of SCAN_TDO and ARM_TDO signals.
Default state is open.
The board power consumption is about 110 mA.
LPC-H3131 can take power from four sources:
–
–
–
–
LPC-H3131 reset circuit includes JTAG connector pin 15, U2 (NAND Flash) pin 19
(#WP), U7 (SPI-Flash) pin 3 (/RESET/) and pin 5 (/WP/), D5 (1N4148), C80
(100nF), R64 (100 Ohm), R32 (10k), R47 (330 Ohm), LPC3131 pin H14 (RSTIN_N)
and Reset button.
Quartz crystal 12MHz is connected to LPC3131 pin A10 (FFAST_IN) and pin B10
(FFAST_OUT).
Default state is Boot via USB.
CLOSE
CLOSE
OPEN
OPEN
OPEN
OPEN
External Power Jack – 6V AC, 9V DC
+5V_OTG_PWR from USB_OTG
+5V_USB_TO_UART from USB
+5V_JLINK from JTAG connector
1-2
BOOT State
CLOSE
CLOSE
CLOSE
CLOSE
OPEN
OPEN
3-4
CLOSE
CLOSE
CLOSE
OPEN
OPEN
OPEN
5-6
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Boot from UART (115.2kbps)
Boot from SPI NOR Flash
Boot from NAND Flash
Boot via SD/MMC
BOOT MODE
Boot via USB
Test mode