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SARA-R4 series - System integration manual
UBX-16029218 - R20
System description
Page 10 of 128
C1-Public
1.2
Architecture
summarizes the internal architecture of SARA-R410M and SARA-R412M modules.
Memory
V_INT
VCC (Supply)
USB
DDC (I2C)
SIM card detection
SIM
UART
Power-on
Reset
GPIOs
Antenna detection
19.2 MHz
Cellular
BaseBand
Processor
Power
Management
SDIO
SPI / Digital audio
ANT
Switch
PAs
RF
transceiver
Filters
Filters
Figure 1: SARA-R410M and SARA-R412M modules simplified block diagram
☞
The SARA-R410M-
01B modules, i.e. the “01
B
” product version of
the SARA-R410M modules, do
not support the following interfaces, which should be left unconnected and should not be driven
by external devices:
o
DDC (I2C) interface
o
SDIO interface
o
SPI interface
o
Digital audio interface
☞
The SARA-R410M-02B, the SARA-R410M-52B, the SARA-R410M-63B, the SARA-R410M-73B,
the SARA-R410M-83B, the SARA-R412M-02B
modules, i.e. the “02
B
”, “52
B
”, “63
B
”, “73
B
”
and
“83
B
”
product versions of the SARA-R410M and SARA-R412M modules, do not support the
following interfaces, which should be left unconnected and should not be driven by external
devices:
o
SDIO interface
o
SPI interface
o
Digital audio interface