3152A User Manual
Using The Instrument 3-30
Racal Instruments
©
2001
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
X
D1
D0
WAVEFORM POINT DATA
PLL BIT
EVEN WAVEFORM POINT
(FLOOR(POS/2)*2)
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
X
X
X
WAVEFORM POINT DATA
SYNC BIT
ODD WAVEFORM POINT
(FLOOR(POS/2)*2+1)
STOP BIT
PHASE BIT
D2
D2
D1
D0
Figure 3-3, 16-Bit Waveform Data Format
NOTE
The Model 3152A operates in interlaced mode
where two memory cells generate one byte of data.
Segment size can be programmed in even-
numbers only and the generator can accept binary
blocks of data that are in multiples of 4 only. For
example, 2000 bytes is an acceptable binary block.
2002 is not a multiple of 4, therefore, the generator
automatically adjusts the size to 1002 points (2004
bytes) and generates an error message.