參數(shù)資料
型號: MCF51CN128CLK
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 50.33 MHz, MICROCONTROLLER, PQFP80
封裝: 14 X 14 MM, 1.40 MM HEIGHT, 0.65 MM PITCH, LQFP-80
文件頁數(shù): 17/48頁
文件大?。?/td> 3550K
代理商: MCF51CN128CLK
MCF51CN128 ColdFire Microcontroller Data Sheet, Rev. 4
Electrical Characteristics
Freescale Semiconductor
24
Figure 14. Mini-FlexBus Write Timing
3.11
Fast Ethernet Timing Specifications
The following timing specs are defined at the chip I/O pin and must be translated appropriately to arrive at timing
specs/constraints for the physical interface.
3.11.1
Receive Signal Timing Specifications
The following timing specs meet the requirements for MII and 7-Wire style interfaces for a range of transceiver devices.
Table 13. Receive Signal Timing
Num
C
Characteristic
MII Mode
Unit
Min
Max
RXCLK frequency
25
MHz
E1
P
RXD[3:0], RXDV, RXER to RXCLK setup
5
ns
E2
D
RXCLK to RXD[3:0], RXDV, RXER hold
5
ns
E3
D
RXCLK pulse width high
35%
65%
RXCLK period
E4
D
RXCLK pulse width low
35%
65%
RXCLK period
FB_CLK
S0
S1
S2
S3
FB_R/W
FB_ALE
FB_OE
DATA[7:0]
8-bit Non-Mux’d Bus
16-bit Mux’d Bus
ADDR[19:8]
ADDR[7:0]
FB_AD[19:8]
FB_AD[7:0]
FB_CSn
S0
FB_AD[15:0]
DATA[15:0]
FB_AD[19:16]
ADDR[19:16]
ADDR[15:0]
MB1
MB2
MB3
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