©2018
Rev 1.1
23
Hardware Registers
Bits Type Name
Width Description
var_u32 is some unsigned integer that holds the 32
bits of read data.
[63:32]
R
Invalid data
32
Ignore
Register 0x32 GET_DEVICE_STATUS
Write to this register to query the current operating conditions.
Bytes written 2
Bytes read 8
Bits Type Name
Width Description
[7:0]
W
Unused
7
Set to zeros
[0]
R
Pll status: LO1 sum
1
The summing PLL of LO
[1]
R
Pll status: LO1 crs
1
The coarse tuning PLL of LO
[2]
R
Pll status: LO1 fine
1
The fine tuning PLL of LO
[3]
R
Pll status: VCXO
1
100 MHz VCXO
[4]
R
Pll status: TCXO
1
TCXO, only valid when lock to external reference is
enabled
[6:5]
R
Loop Gain
2
Low, Normal, High (0,1,2)
[8]
R
Device Accessed
1
When the SET SYS ACTIVE register is accessed
[9]
R
ExtRefDetected
1
If an external reference is detected
[10]
R
LockExtRef
1
Enable device to lock to external reference
[11]
R
LoPwrEnable
1
LO section power status
[12]
R
ExtLoEnable
1
Select (0/1) internal/external LO
[13]
R
extLoSelect
1
Select (0/1) front/rear LO ports
[14]
R
loMode
1
Using RF&IF to calc LO value(0), use LO direct(1)