Altera PCI Compiler User Manual

Page 206

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3–132

User Guide Version 11.1

Altera Corporation

PCI Compiler

October 2011

64-Bit Addressing, Dual Address Cycle (DAC)

64-Bit Address, 64-Bit Data Single-Cycle Target Read Transaction

Figure 3–48

shows the waveform for a 64-bit address, 64-bit data single-

cycle target read transaction.

Figure 3–48

is exactly the same as

Figure 3–7

, except that

Figure 3–48

has two address phases (described in

the previous paragraph). Also, both lt_tsr[1..0] signals are asserted
to indicate that the BAR0 and BAR1 address range of pci_mt64 and
pci_t64

matches the current transaction address. In addition, the

current transaction upper 32-bit address is latched on l_adro[63..32],
and the lower 32-bit address is latched on l_adro[31..0].

1

All 32-bit addressing transactions described in

“Target Mode

Operation” on page 3–131

are applicable for 64-bit addressing

transactions, except for the differences described in the previous
paragraph.

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