Integration Manual

TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R04 Advance Information System description
Page 13 of 141
Function
Pin Name
Pin No
I/O
Description
Remarks
SIM
VSIM
59
O
SIM supply output
VSIM = 1.8 V / 3 V automatically generated according to
the connected SIM type.
See section 1.8 for functional description.
See section 2.5 for external circuit design-in.
SIM_IO
57
I/O
SIM data
Data input/output for 1.8 V / 3 V SIM
Internal 4.7 k pull-up to VSIM.
See section 1.8 for functional description.
See section 2.5 for external circuit design-in.
SIM_CLK
56
O
SIM clock
3.25 MHz clock output for 1.8 V / 3 V SIM
See section 1.8 for functional description.
See section 2.5 for external circuit design-in.
SIM_RST
58
O
SIM reset
Reset output for 1.8 V / 3 V SIM
See section 1.8 for functional description.
See section 2.5 for external circuit design-in.
USB
VUSB_DET
4
I
USB detect input
Input for VBUS (5 V typical) USB supply sense.
See section 1.9.1 for functional description.
See section 2.6.1 for external circuit design-in.
USB_D-
27
I/O
USB Data Line D-
USB interface for AT commands, data communication,
FOAT, FW update by u-blox EasyFlash tool and diagnostic.
90  nominal differential impedance (Z
0
)
30  nominal common mode impedance (Z
CM
)
Pull-up or pull-down resistors and external series resistors
as required by the USB 2.0 specifications [4] are part of the
USB pad driver and need not be provided externally.
See section 1.9.1 for functional description.
See section 2.6.1 for external circuit design-in.
USB_D+
28
I/O
USB Data Line D+
USB interface for AT commands, data communication,
FOAT, FW update by u-blox EasyFlash tool and diagnostic.
90  nominal differential impedance (Z
0
)
30  nominal common mode impedance (Z
CM
)
Pull-up or pull-down resistors and external series resistors
as required by the USB 2.0 specifications [4] are part of the
USB pad driver and need not be provided externally.
See section 1.9.1 for functional description.
See section 2.6.1 for external circuit design-in.
UART
RXD
17
O
UART data output
Note: UART not supported by TOBY-L2x0-00S.
1.8 V output, Circuit 104 (RXD) in ITU-T V.24,
for AT command, data communication, FOAT.
Add Test-Point and series 0  to access for diagnostic.
See section 1.9.2 for functional description.
See section 2.6.2 for external circuit design-in.
TXD
16
I
UART data input
Note: UART not supported by TOBY-L2x0-00S.
1.8 V input, Circuit 103 (TXD) in ITU-T V.24,
for AT command, data communication, FOAT.
Add Test-Point and series 0  to access for diagnostic.
See section 1.9.2 for functional description.
See section 2.6.2 for external circuit design-in.
CTS
15
O
UART clear to send
output
Note: UART not supported by TOBY-L2x0-00S.
1.8 V output, Circuit 106 (CTS) in ITU-T V.24.
Add Test-Point and series 0  to access for diagnostic.
See section 1.9.2 for functional description.
See section 2.6.2 for external circuit design-in.
RTS
14
I
UART ready to send
input
Note: UART not supported by TOBY-L2x0-00S.
1.8 V input, Circuit 105 (RTS) in ITU-T V.24.
Add Test-Point and series 0  to access for diagnostic.
See section 1.9.2 for functional description.
See section 2.6.2 for external circuit design-in.