User's Guide

UL865 Hardware User Guide
1VV0301050 Rev 2 – 2013-10-09
Pad
Signal
I/O
Function
Note
Type
Audio
18
USB_D+
I/O
USB differential Data (+)
17
USB_D-
I/O
USB differential Data (-)
16
USB_VBUS
AI
Power sense for the internal USB transceiver.
SIM card interface
9
SIMVCC
-
External SIM signal – Power supply for the SIM
1,8 / 3V
10
SIMRST
O
External SIM signal – Reset
1,8 / 3V
11
SIMCLK
O
External SIM signal – Clock
1,8 / 3V
12
SIMIO
I/O
External SIM signal – Data I/O
4.7k Pull up
1,8 / 3V
X
All GPI0
can be
program
med
SIMIN
I
Presence SIM input
CMOS 1.8V
Auxiliary
44
RXD_AUX
/SPI_MISO
I
O
Auxiliary UART (RX Data)
SPI_MISO
CMOS 1.8V
45
TXD_AUX /
SPI_MOSI
O
I
Auxiliary UART (TX Data)
SPI_MOSI
CMOS 1.8V
Prog. / Data + HW Flow Control
1
C109/DCD/GPO
O
Output for Data carrier detect signal (DCD) to DTE
/ GP output
CMOS 1.8V
2
C125/RING/GPO
O
Output for Ring indicator signal (RI) to DTE
/ GP output
CMOS 1.8V
3
C107/DSR/GPO
O
Output for Data set ready signal (DSR) to DTE
/ GP output
CMOS 1.8V
4
C108/DTR/GPI
I
Input for Data terminal ready signal (DTR) from DTE
/ GP input
CMOS 1.8V
5
C105/RTS/GPI
I
Input for Request to send signal (RTS) from DTE
/ GP input
CMOS 1.8V
6
C106/CTS/GPO
O
Output for Clear to send signal (CTS) to DTE
/ GP output
CMOS 1.8V
7
C103/TXD
I
Serial data input (TXD) from DTE
CMOS 1.8V
8
C104/RXD
O
Serial data output to DTE
CMOS 1.8V
DAC and ADC
13
ADC_IN1
AI
Analog/Digital converter input
Accepted
values 0 to
1.2V DC
A/D
14
ADC_IN2
AI
Analog/Digital converter input
Accepted
values 0 to
1.2V DC
A/D
15
DAC_OUT
AO
Digital/Analog converter output
D/A
Miscellaneous Functions
30
VRTC
AO
backup for the embedded RTC supply (1.8V)
Power
47
RESET*
I
Reset Input
CMOS 1.8V
43
V_AUX / PWRMON
O
1.8V stabilized output Imax=100mA
/ Power ON monitor
Power Out 1.8V