2/24/2008 9T6WP
Preliminary Hardware Data Module
BCM7405
06/29/07
Functional Description
Bro a d c o m Co rp o r a ti o n
Document
7405-1HDM00-R
Peripherals Page 1-85
Figure 1-28: EBI Synchronous Read Cycle Between Two PCI Cycles
PCI_CLK
PCI_AD[15:0]
(EBI_DATA[15:0])
PCI_IRDYb
(EBI_ADDR[21])
PCI_TRDYb
(EBI_TAb)
PCI_DEVSELb
(EBI_ADDR[23])
PCI_FRAMEb
EBI Address
EBI_TSb
EBI_DSb
EBI_WEb[1:0]
EBI_RDb
PCI_AD[31:16]
(EBI_ADDR[15:0])
PCI_CBE[3:0]
(EBI_ADDR[19:16])
EBI_CSb
PCI_STOPb
(EBI_ADDR[22])
EBI Address
EBI
Data
PCI
Addr
PCI
Addr
PCI
CMD
PCI Data
PCI Data
PCI Byte Enable
PCI
Addr
PCI
Addr
PCI
CMD
PCI Data
PCI Byte Enable
Sync Mode EBI Read Cycle
PCI Write Cycle
PCI Read Cycle
PCI
Data
EBI Address
EBI Valid Tsize
EBI_TSIZE[1:0]
EBI_ADDR[25:24]
PCI_REQb
PCI_GNTb
EBI_REQb
EBI_GNTb
Deassert PCI_GNTb and
ready to grant EBI when
PCI bus is idle