參數(shù)資料
型號(hào): MPC8540PXALDB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 667 MHz, MICROPROCESSOR, PBGA783
封裝: 29 X 29 MM, 3.75 MM HEIGHT, 1 MM PITCH, FLIP CHIP, PLASTIC, BGA-783
文件頁數(shù): 52/104頁
文件大?。?/td> 2133K
代理商: MPC8540PXALDB
MPC8540 Integrated Processor Hardware Specifications, Rev. 3.1
Freescale Semiconductor
51
PCI/PCI-X
12 PCI/PCI-X
This section describes the DC and AC electrical specifications for the PCI/PCI-X bus of the MPC8540.
12.1 PCI/PCI-X DC Electrical Characteristics
Table 40 provides the DC electrical characteristics for the PCI/PCI-X interface of the MPC8540.
12.2 PCI/PCI-X AC Electrical Specifications
This section describes the general AC timing parameters of the PCI/PCI-X bus of the MPC8540. Note that the
SYSCLK signal is used as the PCI input clock. Table 41 provides the PCI AC timing specifications at 66 MHz.
Table 40. PCI/PCI-X DC Electrical Characteristics 1
Parameter
Symbol
Min
Max
Unit
High-level input voltage
VIH
2
OVDD + 0.3
V
Low-level input voltage
VIL
–0.3
0.8
V
Input current
(VIN
2 = 0 V or V
IN = VDD)
IIN
±5
A
High-level output voltage
(OVDD = min, IOH = –100 A)
VOH
OVDD – 0.2
V
Low-level output voltage
(OVDD = min, IOL = 100 A)
VOL
0.2
V
Notes:
1.Ranges listed do not meet the full range of the DC specifications of the PCI 2.2 Local Bus Specifications.
2.Note that the symbol VIN, in this case, represents the OVIN symbol referenced in Table 1 and Table 2.
Table 41. PCI AC Timing Specifications at 66 MHz
Parameter
Symbol 1
Min
Max
Unit
Notes
SYSCLK to output valid
tPCKHOV
6.0
ns
2, 3
Output hold from SYSCLK
tPCKHOX
2.0
ns
2, 10
SYSCLK to output high impedance
tPCKHOZ
14
ns
2, 4, 11
Input setup to SYSCLK
tPCIVKH
3.0
ns
2, 5, 10
Input hold from SYSCLK
tPCIXKH
0
ns
2, 5, 10
REQ64 to HRESET 9 setup time
tPCRVRH
10
× tSYS
clocks
6, 7, 11
HRESET to REQ64 hold time
tPCRHRX
0
50
ns
7, 11
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