HP 34970A - Page 65

The Multifunction Module
The multifunction module (HP 34907A) adds two additional measurement
input capabilities to the system: digital input and event totalize.
The multifunction module also contains a dual voltage output (DAC)
which is described in more detail on page 68.
Digital Input The multifunction module has two non-isolated 8-bit
input/output ports which you can use for reading digital patterns.
You can read the live status of the bits on the port or you can configure
a scan to include a digital read. Each port has a separate channel
number on the module and contains 8-bits. You can combine the two
ports to read a 16-bit word.
Bit 0
Digital
Input
Bit 7
Bit 0
Bit 7
8
8
Port 1 (LSB)
Channel 01
Port 2 (MSB)
Channel 02
3
Chapter 3 System Overview
Measurement Input
65