EGS5 Hardware Interface Description
5.5 Pad Assignment and Signal Description
104
EGS5_HD_v02.004
Page 91 of 123
2012-02-09
Confidential / Released
SPI
Serial
Periph-
eral Inter-
face
SPIDI
I
V
OL
max = 0.2V at I = 2mA
V
OH
min = 2.55V at I = -0.5mA
V
OH
max = 3.00V
V
IL
max = 0.8V
V
IH
min = 2.15V,
V
IH
max = V 0.3V =
3.05V
If the Serial Peripheral Interface
is active the I
2
C interface is not
available.
If lines are unused keep lines
open.
I2CDAT_SPID
O
O
I2CCLK_SPIC
LK
O
SPICS
O
USB
VUSB_IN
I
V
IN
min = 4.0V
V
IN
max = 5.25V
All electrical characteristics
according to USB Implement-
ers’ Forum, USB 2.0 Full Speed
Specification.
Without Java: USB port
Under Java: Debug interface
for development purposes.
If lines are unused keep lines
open.
USB_DN
I/O Differential Output Crossover volt-
age Range
V
CRS
min = 1.5V, V
CRS
max = 2.0V
Line to GND:
V
OH
max = 3.6V
V
OH
typ = 3.3V
V
OH
min = 3.0V at I=-0.5mA
V
OL
max = 0.2V at I=2mA
V
IH
min = 2.24V
V
IL
max = 0.96V
Driver Output Resistance
Z
typ
= 32Ohm
Pullup at USB_DP R
typ
=1.5kOhm
USB_DP
I/O
Analog
Digital
Con-
verter
ADC1_IN
I
Input voltage: VImin = 0V, VImax
= 2.4V
Ri
750kOhms Measurement
interval: 100ms - 30s selectable by
AT command
Resolution: 2400 steps
(1step = 1mv)
Accuracy total:
±
2mV
Cut-off frequency: 30 Hz
Underflow: > -25mV
Overflow: > +2425 mV
Accuracy:
±
0.5mV
Linear error:
±
0.5mV
Temperature error:
±
0.5mV
Burst error:
±
0.5mV
Inputs used for measuring
external voltages.
ADC1_IN and ADC2_IN are
internally multiplexed through
analog switch.
ADC2_IN
I
Digital
Analog
Con-
verter
DAC_OUT
O
V
OL
max = 0.2V at I = 2mA
V
OH
min = 2.55V at I = -0.5mA
V
OH
max = 3.00V
PWM signal which can be
smoothed by an external filter.
Use the AT^SWDAC command
to open and configure the
DAC_OUT output.
Table 27:
Signal description
Function
Signal name
IO
Signal form and level
Comment
