Upper Header Pin-Out - Technologic Systems TS-7400 Hardware & Software Installation

Upper header Pin-Out

Pin #
1 TDO
2 TMS
3 GND
4 TDI
5 BLAST_BOOT#
6 TCK
7 UART0_TXD
8 UART0_RXD
9 SPI_MISO
10 3.3V
11 BLAST_EE_CS#
12 SPI_MOSI
13 FLASH_CS#
14 SPI_CLK
15 5V
16 EXT_RESET#
17 BLAST_PRESENT# Boot hijacker present input
18 GND
19 PORTB_4
20 GND
21 EN_5V
22 EP_USB+
23 FIL_VIN
24 EP_USB-
25 PORTB_7
26 USB_5V
© May, 2010
Name
TS-production reserved
TS-production reserved
Ground
TS-production reserved
input, low will hijack CPU SPI bootstrap
TS-production reserved
ep9302 UART #0 output (/dev/ttyAM0 in Linux)
ep9302 UART #0 input (/dev/ttyAM0 in Linux)
SPI master-in, slave-out input
3.3V TS-7400 regulator output (or input, if U6 regulator is
not populated)
chip-select for SPI boot hijack EEPROM
SPI master-out, slave in output
chip-select used for 2 megabyte SPI flash on TS-9441
(used by TS-SPIBOOT boot program)
SPI clock output
5V regulated power input/output
External reset input, low triggers board reset
Ground
CPU connected GPIO pin, 5V tolerant with external
series resistor.
Ground
Switching power supply enable input, open-drain, pull
low to disable 5V switcher
EP93xx CPU USB port data signal
Reserved
EP93xx CPU USB port data signal
CPU connected GPIO pin, 6.49k pull-down and 1k series
resistors. 5V tolerant.
USB 5V power
www.embeddedARM.com
TS-7400/TS-9441 MANUAL
CONNECTORS AND HEADERS
Function
36