参数资料
型号: MPC8306VMABDCA
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 133 MHz, RISC PROCESSOR, PBGA369
封装: 19 X 19 MM, 1.61 MM HEIGHT, 0.80 MM PITCH, LEAD FREE, MAPBGA-369
文件页数: 22/76页
文件大小: 474K
代理商: MPC8306VMABDCA
MPC8306 PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 0
Freescale Semiconductor
29
Ethernet and MII Management
Table 26. IEEE 1588 DC Electrical Characteristics
Characteristic
Symbol
Condition
Min
Max
unit
Output high voltage
VOH
IOH = -8.0 mA
2.4
V
Output low voltage
VOL
IOL = 8.0 mA
0.5
V
Output low voltage
VOL
IOL = 3.2mA
—0.4
V
Input high voltage
VIH
2.0
OVDD + 0.3
V
Input low voltage
VIL
- 0.3
0.8
V
Input current
IIN
0V ≤ VIN ≤ OVDD
—± 5
μA
Table 27. IEEE 1588 AC Timing Specifications
At recommended operating conditions with OVDD of 3.3 V ± 300mV.
Parameter/Condition
Symbol
Min
Typ
Max
Unit
Notes
QE_1588_CLK clock period
tT1588CLK
2.5
TRX_CLK 9ns
1, 3
QE_1588_CLK duty cycle
tT1588CLKH/tT1588CLK
40
50
60
%
QE_1588_CLK peak-to-peak jitter
tT1588CLKINJ
——
250
ps
Rise time QE_1588_CLK
(20%–80%)
tT1588CLKINR
1.0
2.0
ns
Fall time QE_1588_CLK
(80%–20%)
tT1588CLKINF
1.0
2.0
ns
QE_1588_CLK_OUT clock period
tT1588CLKOUT
2
tT1588CLK
——
ns
QE_1588_CLK_OUT duty cycle
tT1588CLKOTH
/tT1588CLKOUT
30
50
70
%
QE_1588_PULSE_OUT
tT1588OV
0.5
3.0
ns
QE_1588_TRIG_IN pulse width
tT1588TRIGH
2
tT1588CLK_MAX
——
ns
2
Notes:
1.TRX_CLK is the max clock period of QUICC engine receiving clock selected by TMR_CTRL[CKSEL]. See the MPC8306
PowerQUICC II Pro Integrated Processor Family Reference Manual,
for a description of TMR_CTRL registers.
2. It need to be at least two times of clock period of clock selected by TMR_CTRL[CKSEL]. See the MPC8306 PowerQUICC II
Pro Integrated Processor Family Reference Manual,
for a description of TMR_CTRL registers.
3. The maximum value of tT1588CLK is not only defined by the value of TRX_CLK, but also defined by the recovered clock. For
example, for 10/100 Mbps modes, the maximum value of tT1588CLK is 3600 and 280ns, respectively.
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