xe1205 Semtech Corporation, xe1205 Datasheet - Page 40
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xe1205
Manufacturer Part Number
xe1205
Description
Low-power, High Link Budget Integrated Uhf Transceiver
Manufacturer
Semtech Corporation
Datasheet
1.XE1205.pdf
(48 pages)
- Current page: 40 of 48
- Download datasheet (764Kb)
The table below gives the pad configuration for the different chip modes and settings.
PAD
SW0
SW1
NSS_CONFIG
NSS_DATA
IRQ_0
IRQ_1
DATA
CLKOUT
MISO
MOSI
SCK
© Semtech 2007
CHIP
7.7
.Mode
PAD CONFIGURATION VERSUS CHIP MODES
Sleep
OUTPUT when
Select_mode =
else
Input
OUTPUT when
Select mode =
else
Input
INPUT
INPUT
High impedance
High impedance
High impedance
OUTPUT
OUTPUT if
NSS_CONFIG=
or NSS_DATA =
else
High Impedance
INPUT
INPUT
Standby
OUTPUT when
Select_mode =
else
Input
OUTPUT when
Select mode =
else
Input
INPUT
INPUT
High impedance
High impedance
High impedance
OUTPUT
OUTPUT if
NSS_CONFIG=
or NSS_DATA =
else
High Impedance
INPUT
INPUT
Table 28. Pad configuration vs chip modes
Receive
OUTPUT when
Select_mode =
else
Input
OUTPUT when
Select mode =
else
Input
INPUT
INPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT if
NSS_CONFIG=
or NSS_DATA =
else
High Impedance
INPUT
INPUT
40
Transmit
OUTPUT when
Select_mode =
else
Input
OUTPUT when
Select mode =
else
Input
INPUT
INPUT
OUTPUT
OUTPUT
Input if Data_unidir
is low ELSE output
(refer to 5.2.5)
OUTPUT
OUTPUT if
NSS_CONFIG=
or NSS_DATA =
else
High Impedance
INPUT
INPUT
Comment
If Select_mode =
SW0 and SW1
defines the chip
mode
If Select_ mode =
SW0 and SW1
defines the chip
mode
NSS_CONFIG has
the priority over
NSS_DATA
NSS_DATA is used
as data modulation
input if Data_unidir is
high
Condition on
NSS_DATA only
applies in buffered
mode
XE1205
www.semtech.com
,
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