參數(shù)資料
型號: MPC8544AVTAQG
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, PBGA783
封裝: 29 X 29 MM, 1 MM PITCH, LEAD FREE, PLASTIC, FC-PBGA-783
文件頁數(shù): 91/128頁
文件大小: 1411K
代理商: MPC8544AVTAQG
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 1
Freescale Semiconductor
65
PCI
15 PCI
This section describes the DC and AC electrical specifications for the PCI bus of the MPC8544E.
15.1
PCI DC Electrical Characteristics
Table 56 provides the DC electrical characteristics for the PCI interface.
15.2
PCI AC Electrical Specifications
This section describes the general AC timing parameters of the PCI bus. Note that the SYSCLK signal is
used as the PCI input clock. Table 57 provides the PCI AC timing specifications at 66 MHz.
Table 56. PCI DC Electrical Characteristics 1
Parameter
Symbol
Min
Max
Unit
Notes
High-level input voltage
VIH
2OVDD + 0.3
V
Low-level input voltage
VIL
–0.3
0.8
V
Input current (VIN = 0 V or VIN = VDD)IIN
—±5
μA2
High-level output voltage (OVDD = min, IOH = –2mA)
VOH
2.4
V
Low-level output voltage (OVDD = min, IOL = 2 mA)
VOL
—0.4
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 57. PCI AC Timing Specifications at 66 MHz
Parameter
Symbol1
Min
Max
Unit
Notes
SYSCLK to output valid
tPCKHOV
7.4
ns
2, 3
Output hold from SYSCLK
tPCKHOX
2.0
ns
2
SYSCLK to output high impedance
tPCKHOZ
—14
ns
2, 4
Input setup to SYSCLK
tPCIVKH
3.7
ns
2, 5
Input hold from SYSCLK
tPCIXKH
0.5
ns
2, 5
REQ64 to HRESET9 setup time
tPCRVRH
10
× tSYS
—clocks
6, 7
HRESET to REQ64 hold time
tPCRHRX
050
ns
7
HRESET high to first FRAME assertion
tPCRHFV
10
clocks
8
Rise time (20%–80%)
tPCICLK
0.6
2.1
ns
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