Device Parameters Data And Format - SIGNALCORE SC5312A User Manual

30 SC5312A & SC5313A Hardware Manual
Register 0x36 SERIAL_OUT_BUFFER
Writing to this register only provides the 64 clock edges (Reg + 7 data bytes) to transfer serial data from
the device through SPI. Other interfaces do not use this register.
Bytes read 8
Bits Type Name
[55:0] W Unused
[63:0] R Data

Device Parameters Data and Format

The data read back from the GET_DEVICE_PARAM register has a total of 8 bytes, however not all bytes
contain valid data. The table below shows the valid data for each of the parameters.
Device Param
Parameter Name num
RF FREQ
IF1 FREQ
IF2 FREQ
IF3 FREQ
LO1 FREQ
LO2 FREQ
LO3 FREQ
ATTEN VALUES
CHAIN CONFIG
Frequency parameter values
Frequency parameter values are returned in the first 7 bytes with the last byte padded with zeros. The
least significant bit (LSB) is 1/1000 Hertz (the data is returned in 1 one thousandth of a Hertz). Divide the
data by 1000 to obtain the result in Hertz.
Attenuator values
Each attenuator value is returned as one byte, and the LSB is in 0.25 dB. Divide each byte by 4 to obtain
the result in dB.
Rev 2.1 | SC5312A & SC5313A
Width Description
56 Zeros, just to provide clocking for SPI data from device
64 8 bytes of data
Table 5. Device parameter data
Data
Byte 7 Byte 6
type
0 U64 zeros
1 U64 zeros
2 U64 zeros
3 U64 zeros
4 U64 zeros
5 U64 zeros
6 U64 zeros
7 8xU8 zeros NA
8 2xU16 zeros zeros
User Manual
Byte 5 Byte 4 Byte 3 Byte 2
Data
Data
Data
Data
Data
Data
Data
RF A1 RF A2 NA EXT IF
zeros zeros SC Gain
Byte 1 Byte 0
IF3 A1 IF3 A2
SC Config
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