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© National Instruments Corporation D-1 653X User Manual
D
Hardware Considerations
This appendix covers several hardware considerations for your
653X device. As an advanced user, you can use these sections to understand
how the hardware works in your 653X device.
Block Diagrams
Figure D-1.
AT-DIO-32HS Block Diagram
DAQ-DIO
Counters
and
Timers
DMA/
Interrupt
Requests
Handshaking
and
Control
Data Latches
and
Drivers
Data Lines
Data Lines
(32)
(16)
AT
Plug and Play
Interface
AT I/O Channel
EEPROM
RTSI Bus
RTSI
Interface
Control
Lines (8)
I/O Connector
Clock
Selection
Internal
FIFOs
Bus
Interface
Request
Processing
20 MHz
Oscillator