EVK-7 / EVK-8 / EVK-M8 User Guide
UBX-14002502 - R10
Early Production Information
Device description
Page 11 of 25
PIN Nr.: PIN NAME
I/O
LEVEL
DESCRIPTION
14
V5_IN
I
4.75 V –
5.25 V
Power input – can be used instead of USB
13
GND
I
-
Common ground pin
12
P1A (VCC)
O
3.3 V
Power output – max. current supply 100 mA
1
Ω
1% resistor for over-all current measurement to pin 11 (P1B)
NOTE: the current includes also SQI Flash, LNA
11
P1B
O
Second connection for over-all current measurement (see Figure 5)
10
P2A
O
3.0 V
Battery output (unloaded)
100
Ω
1% resistor for battery backup current measurement to pin 9 (P2B)
NOTE: There is a current protection to 3 mA. See circuit in figure 7 (D2, D4, R29)
9
P2B
O
Second junction for battery backup current measurement
8
TIMEPULSE1 O
3.3 V
Time pulse 1 (internally buffered output)
7
EXTINT0
I
3.3 V
External interrupt input
6
RESERVED1 -
-
not connected
5
SDA /CS
I/O
3.3 V
If slide switch on I2C, then DDC interface selected; Function: data input / output
If slide switch on SPI, then SPI interface selected; chip select input – LOW ACTIVE
4
SCL / SCK
I/O
3.3 V
Clock input / output
3
TxD / MISO
I/O
3.3 V
If slide switch on I2C, then DDC interface selected / UART TxD (3.3V Level)
If slide switch on SPI, then SPI interface selected; Master in Slave out (MISO)
2
RxD / MOSI
I/O
3.3 V
If slide switch on I2C, then DDC interface selected / UART RxD (3.3V Level)
If slide switch on SPI, then SPI interface selected; Master out Slave in (MOSI)
1
GND
I
-
Common ground pin
Table 5: Connector pin description for EVK-7 / EVK-8 / EVK-M8 (pins numbered from right to left on the front panel)
2
Time pulse not available in all EVK versions. Refer to section 4.3.4 on how to check availability of Time pulse 1 on your EVK.
V5_IN
GND
GND
V5_IN
Hirschmann
Part Nr.: 934160100
Figure 4: Example 5V DC power supply
