−
7-1
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7. INTERFACES
7.
1
.1 External I/O (J300 on main board)
External I/O connector is a 14-pin user interface connector that provides external UART, USB, charger and other interface to
the X700 handset.
Pin No.
Signal
Name
HH
EXT
Function
1 GND
Ground
2 SERIAL-UP
TXD, UART data transfer to OMAP, or
UARTS0-TXD, UART data transfer to S-GOLD
3 SERIAL-
DOWN
RXD, OMAP UART data transfer to EXT, or
UARTS0-RXD, S-GOLD UART data transfer to EXT
4 DTR/
PA-ON
UART: Data Terminal ready/Accessory
Recognition
Or: PA control signal for test trigger
5 RTS
UART: Request to send to either OMAP or S-GOLD
6 CTS
UART: Clear to send from either OMAP or S-GOLD
7 nACC-
SENSE
N/A
Not used
8 ACC-
PWR/VBAT-
IN
Peripheral power supply up to 100mA
9 DATAMODE
/ACCY ID
Accessory identification (to M7 of S-GOLD ADC)
10 USB
D-
USB IO data -
11 USB
D+
USB IO data +
12 USB-VBUS
Power supply from USB host controller
13 EXT-PWR
Power supply for battery charge
14 GND
Ground
PROVISIONAL ISSUE
Summary of Contents for EB-X700
Page 91: ... 9 23 10 From the Modes pull down menu select EEPROM PROVISIONAL ISSUE ...
Page 107: ...12 6 Mini SD SIM PCB 12 6 PROVISIONAL ISSUE ...
Page 109: ...12 8 LCD PCB 12 8 PROVISIONAL ISSUE ...
Page 110: ...13 LAYOUT DIAGRAMS 13 1 Main PCB Top View 13 1 1 2K PROVISIONAL ISSUE ...
Page 111: ...13 2 Main PCB Bottom View 13 2 1 5K 10K 10K 10K 10K 10K 1 5K PROVISIONAL ISSUE ...
Page 112: ...13 3 LCD PCB Bottom View 13 3 PROVISIONAL ISSUE ...