參數(shù)資料
型號： MPC8378E-MDS-PB
廠商： Freescale Semiconductor
文件頁數(shù)： 89/128頁
文件大?。?/td> 0K
描述： BOARD PROCESSOR FOR MDS S
標(biāo)準(zhǔn)包裝： 1
類型： MPU
適用于相關(guān)產(chǎn)品： MPC8378
所含物品： 板
MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
Freescale Semiconductor
63
14 PCI
This section describes the DC and AC electrical specifications for the PCI bus of the chip.
14.1
PCI DC Electrical Characteristics
This table provides the DC electrical characteristics for the PCI interface of the device. The DC
characteristics of the PORESET signal, which can be used as PCI RST in applications where the device is
a PCI agent, deviates from the standard PCI levels.
14.2
PCI AC Electrical Specifications
This section describes the general AC timing parameters of the PCI bus of the device. Note that the
PCI_CLK/PCI_SYNC_IN or CLKIN signal is used as the PCI input clock depending on whether the chip
is configured as a host or agent device. CLKIN is used when the device is in host mode.
This table shows the PCI AC timing specifications at 66 MHz.
.
Table 53. PCI DC Electrical Characteristics
Parameter
Condition
Symbol
Min
Max
Unit
High-level input voltage
VOUT ≥ VOH (min) or
VIH
2.0
OVDD + 0.5
V
Low-level input voltage
VOUT ≤ VOL (max)
VIL
–0.5
0.3
× OVDD
V
High-level output voltage
IOH = –500 μAVOH
0.9
× OVDD
—V
Low-level output voltage
IOL = 1500 μAVOL
—0.1
× OVDD
V
Input current
0 V
≤ VIN ≤ OVDD
IIN
—
± 30
μA
Note:
The symbol VIN, in this case, represents the OVIN symbol referenced in Table 2.
Table 54. PCI AC Timing Specifications at 66 MHz
PCI_SYNC_IN clock input levels are with next levels: VIL = 0.1
× OV
DD, VIH = 0.7 × OVDD.
Parameter
Symbol1
Min
Max
Unit
Note
Clock to output valid
tPCKHOV
—6.0
ns
Output hold from clock
tPCKHOX
1—
ns
Clock to output high impedance
tPCKHOZ
—14
ns
Input setup to clock
tPCIVKH
3.0
—
ns
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