参数资料
型号: MPC8349EZUAJF
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 533 MHz, RISC PROCESSOR, PBGA672
封装: 35 X 35 MM, 1.50 MM HEIGHT, 1 MM PITCH, TBGA-672
文件页数: 36/115页
文件大小: 1228K
代理商: MPC8349EZUAJF
MPC8349E PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 5
Freescale Semiconductor
27
Ethernet: Three-Speed Ethernet, MII Management
Figure 8 provides the AC test load for TSEC.
Figure 8. TSEC AC Test Load
Figure 9 shows the MII receive AC timing diagram.
Figure 9. MII Receive AC Timing Diagram
RX_CLK clock rise VIL(min) to VIH(max)
tMRXR
1.0
4.0
ns
RX_CLK clock fall time VIH(max) to VIL(min)
tMRXF
1.0
4.0
ns
Note:
1. The symbols used for timing specifications herein follow the pattern of t(first two letters of functional block)(signal)(state)
(reference)(state) for inputs and t(first two letters of functional block)(reference)(state)(signal)(state) for outputs. For example,
tMRDVKH symbolizes MII receive timing (MR) with respect to the time data input signals (D) reach the valid state (V)
relative to the tMRX clock reference (K) going to the high (H) state or setup time. Also, tMRDXKL symbolizes MII
receive timing (GR) with respect to the time data input signals (D) went invalid (X) relative to the tMRX clock reference
(K) going to the low (L) state or hold time. Note that, in general, the clock reference symbol representation is based
on three letters representing the clock of a particular functional. For example, the subscript of tMRX represents the
MII (M) receive (RX) clock. For rise and fall times, the latter convention is used with the appropriate letter: R (rise)
or F (fall).
Table 21. MII Receive AC Timing Specifications (continued)
At recommended operating conditions with LVDD / OVDD of 3.3 V ± 10%.
Parameter/Condition
Symbol 1
Min
Typ
Max
Unit
Output
Z0 = 50
LVDD/2
RL = 50
RX_CLK
RXD[3:0]
tMRDXKH
tMRX
tMRXH
tMRXR
tMRXF
RX_DV
RX_ER
tMRDVKH
Valid Data
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