Ublox LEA-M8S User Manual

LEA-M8S / LEA-M8T - Hardware integration manual
UBX-15030060 - R06 Migration to u-blox M8 modules Page 21 of 33
Production information
27
EXTINT0
External interrupt pin
EXTINT0
External interrupt pin
No difference
28
TIMEPULSE
Timepulse (1PPS)
TIMEPULSE
Time pulse 1
No difference
Table 5: Pin-out comparison LEA-6N vs. LEA-M8S
3.3 Hardware migration LEA-6T -> LEA-M8T
Pin
LEA-6T
LEA-M8T
Remarks for migration
Pin name
Typical assignment
Pin name
Typical assignment
1
SDA
DDC data
SDA / SPI CS_N
DDC data
No difference
2
SCL
DDC clock
SCL / SPI CLK
DDC clock
No difference
3
TxD
Serial port
TXD / SPI MISO
Serial port
No difference
4
RxD
Serial port
RXD / SPI MOSI
Serial port
No difference
5
NC
Not connected
D_SEL
D_SEL =1 (or open)
Do not drive low
6
VCC
Supply voltage
VCC
Supply voltage
No difference
7
GND
Ground (digital)
GND
Ground (digital)
No difference
8
VCC_OUT
Output voltage
VCC_OUT
Output voltage
No difference
9
TIMEPULSE2
2
nd
Time pulse
Not Connected
Reserved
Time pulse 2 is now
available on pin 12
(TP2/SAFEBOOT_N)
10
RESET_N
External reset
RESET_N
External reset
No difference
11
V_BCKP
Backup voltage supply
V_BCKP
Backup voltage supply
If this was connected to
GND on u-blox 6 module,
OK to do the same in M8.
12
Reserved
Safeboot_N
TP2/SAFEBOOT
_N
Safeboot_N /Time pulse 2
Must not be held LO
during start-up.
13
GND
Ground
GND
Ground
No difference
14
GND
Ground
GND
Ground
No difference
15
GND
Ground
GND
Ground
No difference
16
RF_IN
GNSS signal input
RF_IN
GNSS signal input
No difference
17
GND
Ground
GND
Ground
No difference
18
VCC_RF
Output voltage RF section
VCC_RF
Output voltage RF section
No difference
19
V_ANT
Antenna bias voltage
V_ANT
Antenna bias voltage
No difference
20
AADET_N
Active antenna detect
EXTINT1
External interrupt pin/
Active antenna detect
21
Reserved
Not connected
Reserved
Not connected
No difference
22
Reserved
Not connected
Reserved
Not connected
No difference
23
Reserved
Not connected
Reserved
Not connected
No difference
24
VDD_USB
USB supply
VDD_USB
USB supply
No difference
25
USB_DM
USB data
USB_DM
USB data
No difference
26
USB_DP
USB data
USB_DP
USB data
No difference
27
EXTINT0
External interrupt pin
EXTINT0
External interrupt pin
No difference
28
TIMEPULSE1
Time pulse (1PPS)
TIMEPULSE1
Time pulse (1PPS)
No difference
Table 6: Pin-out comparison LEA-6T vs. LEA-M8T
3.4 Software migration
☞ For overall description of the module software operation, see the u-blox 8 / u-blox M8 Receiver
Description Including Protocol Specification [3]. For migration, see the u-blox M8 FW SPG3.01
Migration Guide [8].

Ublox LEA-M8S Specifications

General

Brand	Ublox
Model	LEA-M8S
Category	Receiver
Language	English