Dynamic Engineering cPCIRepeat32 Benutzerhandbuch - Seite 6
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Seite druckenInterrupts and Arbitration
Request and Grants for 0-6 are tied to J2. The Rqst/Gnt pair 7 is tied to the PMC.
The corresponding IDSEL of AD26 is tied to the PMC. Interrupts from the PMC and
secondary bus are connected to the primary PCI bus. INTA through INTD are mapped
directly to the primary bus segment for J2 and are rotated to connect [PMC] CDAB to
match the IDSEL, Request and Grant. Essentially the PMC is set to be the last item
discovered in the chain.
Other Signals
JTAG support is available for the PMC. The JTAG header positions are clearly marked
in the silk screen. The headers are frequently not used and are not installed unless
requested. Please contact Dynamic Engineering for this option.
The Bridge supports a GPIO function. A header position is available with the positions
clearly marked in the silk-screen. The header is installed by request. Please contact
Dynamic Engineering for this option. The 4 bits are terminated with 4.7KΩ to 3.3V.
Embedded Solutions
Page 6