參數(shù)資料
型號： MPC8323ZQADDCA
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 266 MHz, RISC PROCESSOR, PBGA516
封裝： 27 X 27 MM, 2.25 MM HEIGHT, 1 MM PITCH, PLASTIC, PBGA-516
文件頁數(shù)： 14/82頁
文件大?。?/td> 1134K
代理商： MPC8323ZQADDCA
MPC8323E PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 4
Freescale Semiconductor
21
Ethernet and MII Management
Figure 7 shows the MII transmit AC timing diagram.
Figure 7. MII Transmit AC Timing Diagram
8.2.1.2
MII Receive AC Timing Specifications
Table 24 provides the MII receive AC timing specifications.
TX_CLK data clock fall time
tMTXF
1.0
—
4.0
ns
Note:
1. The symbols used for timing specifications 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, tMTKHDX symbolizes MII transmit
timing (MT) for the time tMTX clock reference (K) going high (H) until data outputs (D) are invalid (X). Note that, in general,
the clock reference symbol representation is based on two to three letters representing the clock of a particular functional.
For example, the subscript of tMTX represents the MII(M) transmit (TX) clock. For rise and fall times, the latter convention is
used with the appropriate letter: R (rise) or F (fall).
Table 24. MII Receive AC Timing Specifications
At recommended operating conditions with OVDD of 3.3 V ± 10%.
Parameter/Condition
Symbol1
Min
Typical
Max
Unit
RX_CLK clock period 10 Mbps
tMRX
—400
—
ns
RX_CLK clock period 100 Mbps
tMRX
—40
—
ns
RX_CLK duty cycle
tMRXH/tMRX
35
—
65
%
RXD[3:0], RX_DV, RX_ER setup time to RX_CLK
tMRDVKH
10.0
—
ns
RXD[3:0], RX_DV, RX_ER hold time to RX_CLK
tMRDXKH
10.0
—
ns
RX_CLK clock rise time
tMRXR
1.0
—
4.0
ns
Table 23. MII Transmit AC Timing Specifications (continued)
At recommended operating conditions with OVDD of 3.3 V ± 10%.
Parameter/Condition
Symbol1
Min
Typical
Max
Unit
TX_CLK
TXD[3:0]
tMTKHDX
tMTX
tMTXH
tMTXR
tMTXF
TX_EN
TX_ER
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