參數(shù)資料
型號(hào): MCF5232
廠商: 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述: Integrated Microprocessor Hardware Specification
中文描述: 集成的微處理器,硬件規(guī)格
文件頁數(shù): 52/60頁
文件大小: 1462K
代理商: MCF5232
MCF523x Integrated Microprocessor Hardware Specification, Rev. 1.3
Preliminary
Preliminary Electrical Characteristics
Freescale Semiconductor
52
Figure 20
shows MII transmit signal timings listed in
Table 38
.
Figure 20. MII Transmit Signal Timing Diagram
6.10.3 MII Async Inputs Signal Timing (ECRS and ECOL)
Table 39
lists MII asynchronous inputs signal timing.
Figure 21
shows MII asynchronous input timings listed in
Table 39
.
Figure 21. MII Async Inputs Timing Diagram
6.10.4 MII Serial Management Channel Timing (EMDIO and EMDC)
Table 40
lists MII serial management channel timings. The FEC functions correctly with a maximum
MDC frequency of 2.5 MHz.
Table 39. MII Async Inputs Signal Timing
Num
Characteristic
Min
Max
Unit
M9
ECRS, ECOL minimum pulse width
1.5
ETXCLK period
Table 40. 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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