参数资料
型号: MCF5233CVM150
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 150 MHz, RISC PROCESSOR, PBGA256
封装: MAPBGA-256
文件页数: 64/76页
文件大小: 2665K
代理商: MCF5233CVM150
MOTOROLA
MCF523x Integrated Microprocessor Hardware Specifications
67
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Fast Ethernet AC Timing Specifications
Figure 20 shows MII transmit signal timings listed in Table 54.
Figure 20. MII Transmit Signal Timing Diagram
6.10.3 MII Async Inputs Signal Timing (ECRS and ECOL)
Table 55 lists MII asynchronous inputs signal timing.
Figure 21 shows MII asynchronous input timings listed in Table 55.
Figure 21. MII Async Inputs Timing Diagram
6.10.4 MII Serial Management Channel Timing (EMDIO and
EMDC)
Table 56 lists MII serial management channel timings. The FEC functions correctly with a maximum MDC
frequency of 2.5 MHz.
Table 55. MII Async Inputs Signal Timing
Num
Characteristic
Min
Max
Unit
M9
ECRS, ECOL minimum pulse width
1.5
ETXCLK period
Table 56. MII Serial Management Channel Timing
Num
Characteristic
Min
Max
Unit
M10
EMDC falling edge to EMDIO output invalid (minimum propagation
delay)
0
ns
M11
EMDC falling edge to EMDIO output valid (max prop delay)
25
ns
M12
EMDIO (input) to EMDC rising edge setup
10
ns
M13
EMDIO (input) to EMDC rising edge hold
0
ns
M14
EMDC pulse width high
40%
60%
MDC period
M15
EMDC pulse width low
40%
60%
MDC period
M6
ETXCLK (input)
ETXD[3:0] (outputs)
ETXEN
ETXER
M5
M7
M8
ECRS, ECOL
M9
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