Integration Manual

HMS1 Hardware Interface Description
Confidential / Preliminary
s
HMS1_HD_V01.62 Page 30 of 39 2006-08-21
Function Signal name IO Signal form and level Comment
Status
Indication
BLUE
GREEN
O
O
V
OH
min = BATT+ - 0.2V
V
OL
max = Tbd.
I
Omax
= Tbd.
Signals can be used to
control LEDs via driving
transistors.
BLUE: “0” = module has been
registered to an UMTS cell.
GREEN: “0” = module has
been registered to a GSM
cell.
Constantly changing between
“0” and “1” = module is in
“network search” state.
CCRST O
R
O
≈ 50Ω
V
OL
max = 0.2V at I = 1mA
V
OH
min = 2.7V at I = -1mA
V
OH
max = 3.1V
CCIO I/O
R
I
≈ 10kΩ
V
IL
max = 1V
V
IL
min = -0.3V
V
IH
min = 1.9V
V
IH
max = 3.2V
V
OL
max = 0.2V at I = 1mA
V
OH
min = 2.7V at I = -1mA
V
OH
max = 3.1V
CCCLK O
R
O
≈ 100Ω
V
OL
max = 0.25V at I = 1mA
V
OH
min = 2.65V at I = -1mA
V
OH
max = 3.1V
SIM
interface
specified for
use with 3V
SIM card
CCVCC O
V
O
min = 2.9V
V
O
typ = 3V
V
O
max = 3.1V
I
O
max = -50mA
All signals of SIM interface
are protected against ESD
with a special diode array.
CCRST O
R
O
≈ 50Ω
V
OL
max = 0.2V at I = 1mA
V
OH
min = 1.55V at I = -1mA
V
OH
max = 1.85V
CCIO I/O
R
I
≈ 10kΩ
V
IL
max = 0.6V
V
IL
min = -0.3V
V
IH
min = 1.15V
V
IH
max = 1.85V
V
OL
max = 0.2V at I = 1mA
V
OH
min = 1.5V at I = -1mA
V
OH
max = 1.85V
CCCLK O
R
O
≈ 100Ω
V
OL
max = 0.25V at I = 1mA
V
OH
min = 1.5V at I = -1mA
V
OH
max = 1.85V
SIM
interface
specified for
use with
1.8V SIM
card
CCVCC O
V
O
min = 1.74V
V
O
typ = 1.8V
V
O
max = 1.86V
I
O
max = -50mA
All signals of SIM interface
are protected against ESD
with a special diode array.