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Functional details, Pci-dio96 block diagram, Chapter 3 – Measurement Computing PCI-DIO96 User Manual

Page 14

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Chapter 3

Functional Details

PCI-DIO96 block diagram

PCI-DIO96 functions are illustrated in the block diagram shown here.

PCI BUS (5V, 32-bit, 33 MHz)

PCI

Controller

BADR3

Boot

EEPROM

Control

Registers

Decode/Status

Controller FPGA and Logic

Local Bus

Control

Bus

PLX-9052

Counters

82C54

INT.

82C55

82C55

82C55

82C55

FIRSTPORTA

FIRSTPORTB

C

o

n

tr

o

l

DIO Group 0

FIRSTPORTCH

SECONDPORTA

SECONDPORTB

C

o

n

tr

o

l

DIO Group 1

THIRDPORTA

THIRDPORTB

C

o

n

tr

o

l

DIO Group 2

THIRDPORT H

C

FOURTHPORTA

FOURTHPORTB

C

o

n

tr

o

l

DIO Group 3

FOURTHPORTCH

FIRSTPORTA(7:0)

FIRSTPORTB(7:0)

FIRSTPORTCH(3:0)

THIRDPORTA(7:0)

THIRDPORTB(7:0)

THIRDPORTCH(3:0)

FIRSTPORTCL(3:0)

FIRSTPORTCL

SECONDPORTA(7:0)

SECONDPORTB(7:0)

SECONDPORTCH(3:0)

SECONDPORTCL(3:0)

SECONDPORTCH

SECONDPORTCL

THIRDPORTCL

THIRDPORTCL(3:0)

FOURTHPORTCH

FOURTHPORTCL

FOURTHPORTA(7:0)

FOURTHPORTB(7:0)

FOURTHPORTCH(3:0)

FOURTHPORTCL(3:0)

Figure 3. PCI-DIO96 functional block diagram