HD6417751RBP240V Datasheet, PDF (1029/1226 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

22. PCI Controller (PCIC)
22.3.2 PCI Commands
Table 22.9 lists the PCI commands and shows the PCIC support.
Table 22.9 PCI Command Support
Host Operation
Non-Host
Operation
Command
Master Target Master Target Remarks
Memory read
O
O
O
O
Memory read line
X
Δ
X
Δ
When the target, operates
as memory read
Memory read multiple
X
Δ
X
Δ
When the target, operates
as memory read
Memory write
O
O
O
O
Memory write and invalidate X
Δ
X
Δ
When the target, operates
as memory write
I/O read
O
O
O
O
I/O write
O
O
O
O
Configuration read
O
—
—
O
Configuration write
O
—
—
O
Interrupt acknowledge cycle X
X
X
X
Special cycle
O
—
—
X
Dual address cycle
X
X
X
X
Legend:
O: Supported
Δ: Limited support
X, —: Not issued by PCIC or no response from PCIC
When PCIC Operates as Master: The PCIC supports the memory read command, memory write
command, I/O read command, and I/O write command. When the host functions are enabled, the
configuration command and special cycle can also be used.
When PCIC Operates as Target: The PCIC receives the memory read command, memory write
command, I/O read command, and I/O write command. The memory read line command and
memory read multiple command function as memory reads, while the memory write invalidate
command functions as a memory write. When operating in non-host mode, the PCIC accepts the
configuration command.
Rev.4.00 Oct. 10, 2008 Page 929 of 1122
REJ09B0370-0400