Rev 1.1 | SC5520A & SC5521A
Hardware Manual
SignalCore, Inc.
22
Register 0x0D LIST_BUFFER_WRITE (7 Bytes)
This register stores the frequency and amplitude points into the list buffer held in RAM. Data must be
entered as sequential pairs of frequency followed by amplitude.
Bit Type Name
Width Description
[54:0]
WO
Buffer word
Frequency or
Amplitude
55
Writing this register stores the frequency (mHz)
or amplitude (100
th
of dBm) point into the list
buffer held in RAM.
Writing 0x0000000000 to this buffer resets the
pointer to buffer location [0] and flags the device
to store data written to this register. Consecutive
non-zero writes to this register will increase the
buffer counter up to 2047. Further writes beyond
this point are not recognized. Writing
0x7FFFFFFFFF to this register, and [55] = 1, at any
time will terminate the write process and stops
the pointer increment. The value at which the
pointer stops is the new count of list frequency
points unless it is overwritten by register
LIST_BUFFER_POINTS.
[55]
WO
Frequency or
Amplitude
1
0 = indicates that the bits 54:0 buffer is
frequency
1 = indicates that the buffer is amplitude
Register 0x0E LIST_BUF_MEM_TRNSFER (1 Byte)
This register transfers data between EEPROM memory and the list buffer (in RAM).
Bit Type Name
Width Description
[0]
WO
Transfer Direction
1
0 = Transfers the contents of the list buffer into
EEPROM memory. The size of the transfer is set
by the list frequency points.
1 = Transfers the contents from EEPROM
memory to the list buffer (in RAM)
[7:1]
WO
Unused
7
Set all bits to zero.
Register 0x0F LIST_SOFT_TRIGGER (1 Byte)
This register provides a soft trigger to the device.
Bit Type Name
Width Description
[7:0]
WO
Soft Trigger
8
Set all bits to zero. Calling this register provides a
soft trigger to the device.
