
PCI-DIO48H User's Guide Introducing the PCI-DIO48H
8
PCI-DIO48H block diagram
PCI-DIO48H functions are illustrated in the block diagram shown here.
PCI BUS (5V, 32-bit, 33 MHz)
PCI
Controller
BADR2
Boot
EEPROM
Control
Registers
Decode/Status
Controller CPLD and Logic
Local Bus
Control Bus
Bus
Timing
FIRSTPORTA
FIRSTPORTB
Control
FIRSTPORTCH
SECONDPORTA
SECONDPORT B
Control
HIGH DRIVE
SECONDPORT
FIRSTPORTA(7:0)
FIRSTPORTB(7:0)
FIRSTPORTCH(3:0)
FIRSTPORTCL(3:0)
FIRSTPORTCL
SECONDPORTA(7:0)
SECONDPORTB(7:0)
SECONDPORTCH(3:0)
SECONDPORTCL(3:0)
SECONDPORTCH
SECONDPORT CL
HIGH DRIVE
FIRSTPORT
Fuse+5V User Output
+5V
Figure 1. PCI-DIO48H block diagram
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