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参数资料
| 型号： | MPC5200VR466BR2 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 466 MHz, MICROPROCESSOR, PBGA272 |
| 封装： | 27 X 27 MM, 1.27 MM PITCH, ROHS COMPLIANT, PLASTIC, BGA-272 |
| 文件页数： | 26/80页 |
| 文件大小： | 788K |
| 代理商： | MPC5200VR466BR2 |
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MPC5200B Data Sheet, Rev. 0.6
Electrical and Thermal Characteristics
Freescale Semiconductor
32
Write data is latched by the drive at the inactive edge of the WRITE strobe. This gives ample
setup-time beyond that required by the ATA-4 specification.
Data is held unchanged until the next active edge of the WRITE strobe. This gives ample
hold-time beyond that required by the ATA-4 specification.
All ATA transfers are programmed in terms of system clock cycles (IP bus clocks) in the ATA Host
Controller timing registers. This puts constraints on the ATA protocols and their respective timing modes
in which the ATA Controller can communicate with the drive.
Faster ATA modes (i.e., UDMA 0, 1, 2) are supported when the system is running at a sufficient frequency
to provide adequate data transfer rates. Adequate data transfer rates are a function of the following:
The MPC5200B operating frequency (IP bus clock frequency)
Internal MPC5200B bus latencies
Other system load dependent variables
The ATA clock is the same frequency as the IP bus clock in MPC5200B. See the MPC5200B User Manual
[1].
NOTE
All output timing numbers are specified for nominal 50 pF loads.
Table 27. PIO Mode Timing Specifications
Sym
PIO Timing Parameter
Min/Max
(ns)
Mode 0
(ns)
Mode 1
(ns)
Mode 2
(ns)
Mode 3
(ns)
Mode 4
(ns)
SpecID
t0
Cycle Time
min
600
383
240
180
120
A8.1
t1
Address valid to DIOR/DIOW setup
min
70
50
30
25
A8.2
t2
DIOR/DIOW pulse width 16-bit
8-bit
min
165
290
125
290
100
290
80
70
A8.3
t2i
DIOR/DIOW recovery time
min
—
70
25
A8.4
t3
DIOW data setup
min
60
45
30
20
A8.5
t4
DIOW data hold
min
30
20
15
10
A8.6
t5
DIOR data setup
min
50
35
20
A8.7
t6
DIOR data hold
min
55555
A8.8
t9
DIOR/DIOW to address
valid hold
min
2015101010
A8.9
tA
IORDY setup
max
35
A8.10
tB
IORDY pulse width
max
1250
A8.11
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