Ublox LEA-M8S User Manual

LEA-M8S / LEA-M8T - Hardware integration manual
UBX-15030060 - R06 Design Page 12 of 33
Production information
Function
Pin
No.
I/O
Description
Remarks
SDA 1
(LEA-M8S)
SDA /SPI CS_N
(LEA-M8T)
I/O
SDA
DDC data
I/O
SDA
SPI CS_N
DDC data if D_SEL =1 (or open)
SPI chip select if D_SEL = 0
SCL 2
(LEA-M8S)
SCL / SPI CLK
(LEA-M8T)
I/O
SCL
DDC clock
I/O
SCL
SPI CLK
DDC clock if D_SEL =1 (or open)
SPI clock if D_SEL = 0
RESERVED 5
(LEA-M8S)
D_SEL
(LEA-M8T)
I
Reserved
Leave open
I
Interface select
D_SEL = 0 -> SPI, D_SEL =1 (or open) -> DDC
Reserved
9, 21, 22,
23
-
Reserved
Leave open
Table 2: Pinout LEA-M8S / LEA-M8T
2.1.1 Pin name changes
Selected pin names have been updated to agree with a common naming convention across u-blox
modules. The pins have not changed their operation and are the same physical hardware but with
updated names. The table below lists the pins that have changed their name along with their old and
new names.
No
Previous name
New name
3
TxD (LEA-M8S)
TXD
3
TxD (LEA-M8T)
TXD / SPI MISO
4
RxD (LEA-M8S)
RXD
4
RxD (LEA-M8T)
RXD / SPI MOSI
12
Reserved (LEA-M8S)
SAFEBOOT_N
20
AADET_N
EXTINT1
Table 3: Pin name changes

Ublox LEA-M8S Specifications

General

Brand	Ublox
Model	LEA-M8S
Category	Receiver
Language	English