Analog Output; Analog Input; Input Mode; Figure 3-2. Pci-6111E Block Diagram - National Instruments PCI-6110E/6111E User Manual

Chapter 3 Hardware Overview
CH0+
AI CH0
Mux
CH0-
CH1+
AI CH1
Mux
CH1-
Calibration
Mux
Trigger Trigger Level
DACs
PFI / Trigger
Timing
Digital I/O (8)
DAC0
DAC1

Analog Input

Input Mode

PCI-6110E/6111E User Manual
Figure 3-2 shows a block diagram for the PCI-6111E board.
+
12
CH0 CH0
Amplifier 12-Bit ADC
–
+
12
CH1
CH1
Amplifier 12-Bit ADC
–
Analog
2
Trigger
Circuitry
Trigger
Counter/
Timing I/O
Digital I/O
DAC
FIFO
Calibration
4 DACs
The analog input section for the 611X E board is software configurable.
You can select different analog input configurations through
application software. The following sections describe in detail each of
the analog input categories.
The 611X E board supports only differential inputs (DIFF). The DIFF
input configuration provides up to four channels on the PCI-6110E
board and up to two channels on the PCI-6111E board.
A channel configured in DIFF mode uses two analog channel input lines.
One line connects to the positive input of the board programmable gain
instrumentation amplifier (PGIA), and the other connects to the negative
input of the PGIA. For more information about DIFF input
CH0
Data (16)
Latch
ADC
Data (32)
FIFO
CH1
Data (16)
Latch
AI Control
IRQ
DMA
Analog Input
DMA/IRQ
Timing/Control
Bus
DAQ - STC
Interface

Analog Output

RTSI Bus
Timing/Control
Interface
AO Control
Data (32)
RTSI Bus

Figure 3-2. PCI-6111E Block Diagram

3-2
Control
Generic
PCI
Mini
Bus
Bus
MITE
Interface
Interface
Address/Data
EEPROM
Analog
EEPROM DMA
Input
Control Interface
Control
DAQ-STC
FPGA
Bus
Interface
I/O
Analog
Bus
Output
Interface
Control
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