Freescale Semiconductor MC13853 LNA, Руководство пользователя

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Initial Instructions
MC13853 LNA Evaluation Board User’s Guide, Rev. 1.3
Freescale Semiconductor 1-5
1.4 Operation Under SPI Control
SPI control of the MC13853 uses the SPI bit word structure shown in Figure 1-3 . Any communication over
the SPI that is not 30 bits in length or data without the correct address will be ignored.
Figure 1-3. MC13853 SPI Bit Word Structure
1.5 Graphical User Interface (GUI)
Once the control software on the CD-ROM (LabView executable file) is loaded onto the PC computer and
running, the GUI screen appears on the monitor.
As illustrated in Figure 1-4 :
1. Load the program “AuxSpiControl.vi”.
2. Click the arrow to run.
3. Select “MC13853 Dual + Tri” in the Setting Selector window.
4. To select the LNA, select “LNA Selector” in the SPI Var List window. Select the “LNA” in the
middle window.
5. To select the mode, select “enable” on the SPI Var List window and “1” or “0” in the middle
window. Select the same for the gain.
Clock 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Address structure Data Structure
Bit # 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Not Variable 1 0 1 0 0 0 0 1 0 0
Variable
W
ri
te R
ead
B
it
D
e
v
ic
e
Ty
pe
is
LN
A
D
e
v
ic
e
Ty
pe
is
LN
A
D
e
v
ic
e
Ty
pe
is
LN
A
D
e
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ice i
s
I
o
ta
D
e
v
ic
e
is
Io
ta
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ic
e
is
Io
ta
D
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v
ice i
s
I
o
ta
D
e
v
ice i
s
Io
ta
LN
A
S
e
le
c
tor
P
A
4
LN
A
S
e
le
c
tor
P
A
3
LN
A
S
e
le
c
tor
P
A
2
LN
A
S
e
le
c
tor
P
A
1
LN
A
S
e
le
c
tor
P
A
0
En
a
b
le
Ga
in
SPI Data
Write 0
Read 1
LNA Selector LNA1 (HB2 Band I) 0 0 0
LNA2 (HB1 Band II) 0 0 1
LNA3 (LB Band V) 0 1 0
GPO (Ext LNA)
1 0 0
Mode Selector Active 1 1
on Bypass 0 0
P1.0 parts Disable 0 1
Not Used 1 0
GP
O
2
GP
O
1
Mode Selector Active 1 1
for GPO Bypass 1 0
(External LNA)
Disable
0 0
Disable 0 1
Read Mode
Address structure Data Structure
Bit # 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Not Variable 1 0 1 0 0 0 0 1 0 0
Variable
HID
8
HID
7
HID
6
HID
5
HID
4
HID
3
HID
2
HID
1
HID
0
SPI Data Read
1
LNA Selector
For Hardware Read 0 1 1
o
n
e
ext
ra
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cle in
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