參數(shù)資料
型號： MPC8378CVRAGGA
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 400 MHz, MICROPROCESSOR, PBGA689
封裝： 31 X 31 MM, 2.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-689
文件頁數(shù)： 86/125頁
文件大?。?/td> 894K
代理商： MPC8378CVRAGGA
MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 5
Freescale Semiconductor
63
14
PCI
This section describes the DC and AC electrical specifications for the PCI bus of the MPC8378E.
14.1
PCI DC Electrical Characteristics
The following 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 MPC8378E is configured as a host or agent device.
CLKIN is used when the device is in host mode.
The following 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
OV
DD
V
High-level output voltage
IOH = –500 AVOH
0.9
OV
DD
—V
Low-level output voltage
IOL = 1500 AVOL
—0.1
OV
DD
V
Input current
0 V
V
IN OVDD
IIN
—
± 30
A
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
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
2, 3
Input setup to clock
tPCIVKH
3.0
—
ns
2, 4
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