EP80579 Datasheet, PDF (1696/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
42.4.1.7.17 TI* HPI-16, Simplex-Mode Read Access
Figure 42-22.Expansion-Bus Read (TI* HPI-16, Simplex Mode)
HPI-16 Simplex Read
T1
T2
T3
T4 T5 T1
EX_CLK
EX_CS_N
(hcs_n)
EX_ADDR[23:0]
(ha)
EX_RD_N
(hr_w_n)
Tcs2hds1val
EX_WR_N
(hds1_n)
EX_RDY_N
(hrdy)
EX_DATA
(hdout)
Tadd_setup
Valid
Thds1_pulse
Trecov
Tdata_setup
Valid Data
T2
T3
Valid
Valid Data
42.5
B-01
Register Summary
Accesses to Expansion bus registers are only via 32-bit transfers. Other sized accesses
result in unpredictable operation. Accesses to all reserved bits must be written with
zero unless otherwise specified. All reserved address spaces must not be read. All
writes to reserved address spaces results in unpredictable operation.
For more information on the conventions the following register summaries adopt, see
Section 7.1, “Overview of Register Descriptions and Summaries” on page 183.
The Local Expansion Bus registers materialize in the PCI space.
Table 42-5 summarizes the Local Expansion Bus materialization from the PCI
perspective.
Intel^® EP80579 Integrated Processor Product Line Datasheet
1696
August 2009
Order Number: 320066-003US