Annexes
R&S
®
ZNC
745
User Manual 1173.9557.02 ─ 13
Fig. 9-3: Data ports and related signals
Combined ports (ports E, F, G, H)
A combination of ports A / B and ports C /D provides two additional 16-bit and 8-bit-wide
bidirectional ports. The combined ports are termed ports E and F, respectively. A com-
bination of ports A / B / C and ports A / B / C / D provides two 20-bit and 24-bit-wide
bidirectional ports. These combined ports are termed ports G and H.
Fig. 9-4: Definition of ports E, F, G, H
The properties of the combined ports are as follows:
●
The signal direction (input or output) is according to the configuration of ports A, B,
C, and D. E.g. to write data to port G (H), ports A, B, and C (A, B, C, and D) must be
configured as output ports.
●
Data can be read and written using the
CONTrol:HANDler:E|F|G|H[:DATA]
commands.
●
The bit order is D3 ... D0 C3 ... C0 (port E), B7 ... B0 A7 ... A0 (port F), C3 ... C0 B7 ...
B0 A7 ... A0 (port G), and D3 ... D0 C3 ... C0 B7 ... B0 A7 ... A0 (port H).
SCPI commands: See
chapter 6.3.3, "CONTrol Commands"
Interfaces and Connectors