Datasheet

XIO2213B
www.ti.com SCPS210F –OCTOBER 2008–REVISED MAY 2013
Table 3-8. 1394 OHCI Memory Command Options
COMMAND
PCI OHCI MASTER FUNCTION
C/BE3C/BE0
Memory read 0110 DMA read from memory
Memory write 0111 DMA write to memory
Memory read multiple 1100 DMA read from memory
Memory read line 1110 DMA read from memory
Memory write and invalidate 1111 DMA write to memory
3.11.5 1394b OHCI Subsystem Identification
The subsystem identification register at offset 2Ch is used for system and option card identification
purposes. This register can be initialized from the serial EEPROM or programmed via the subsystem
access register at offset F8h in the 1394a OHCI PCI configuration space (see Section 7.23).
Write access to the subsystem access register updates the subsystem identification registers identically to
OHCI-Lynx™ integrated circuits. The contents of the subsystem access register are aliased to the
subsystem vendor ID and subsystem ID registers at PCI offsets 2Ch and 2Eh, respectively. The
subsystem ID value written to this register may also be read back from this register.
3.11.6 1394b OHCI PME Support
Since the 1394b OHCI controller is not connected to VAUX, PME generation is disabled for D3cold power-
management states.
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