SX1210 SEMTECH [Semtech Corporation], SX1210 Datasheet - Page 31

• Manufacturer Part Number: SX1210
• Description: Ultra-Low Power Integrated UHF Receiver
• Manufacturer: SEMTECH [Semtech Corporation]

Note that when reading more than one register successively, it is not compulsory to toggle NSS_CONFIG back
high between two read sequences. The bytes are alternatively considered as address and value.
To read bytes from the FIFO the timing diagram below should be carefully followed by the uC.
Note that it is compulsory to toggle NSS_DATA back high between each byte read.
Rev 2– Sept 8
ADVANCED COMMUNICATIONS & SENSING
NSS_CONFIG (In)
SCK (In)
MOSI (In)
MISO (Out)
NSS_DATA (In)
SCK (In)
MOSI (In)
MISO (Out)
5.2.2. FIFO
th
, 2008
HZ
HZ
5.2.1.3. SPI Data
5.2.2.1. Overview and Shift Register (SR)
D1(7)
start
1
x
1
x
D1(6) D1(5)
x
2
rw
2
x
x
3
A(4) A(3) A(2) A(1)
3
x
1
Figure 23: Read Bytes Sequence (ex: 2 bytes)
D1(4) D1(3)
st
4
x
byte read
Address = A1
4
x
Figure 22: Read Register Sequence
5
x
5
x
D1(2) D1(1)
6
x
6
x
7
x
Page 31 of 73
A(0)
D1(0)
7
x
8
x
stop
x
8
x
HZ
D(7) D(6) D(5) D(4) D(3) D(2) D(1)
x
9
D2(7) D2(6)
1
x
10
x
2
x
11
x
D2(5)
3
x
Current value at
address A1
12
2
D2(4)
x
nd
4
x
byte read
D2(3)
13
x
5
x
D2(2)
14
6
x
x
D2(1)
7
x
15
x
D2(0)
8
x
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16
D(0)
x
SX1210
HZ
HZ