參數(shù)資料
型號(hào): XPC850SRZT80B
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: Communications Controller Hardware Specifications
中文描述: 32-BIT, 80 MHz, RISC PROCESSOR, PBGA256
封裝: PLASTIC, BGA-256
文件頁(yè)數(shù): 54/68頁(yè)
文件大小: 384K
代理商: XPC850SRZT80B
54
MPC850 (Rev. A/B/C) Hardware Specifications
MOTOROLA
SMC Transparent AC Electrical Specifications
Figure 55. Ethernet Transmit Timing Diagram
8.8
SMC Transparent AC Electrical Specifications
Figure 21 provides the SMC transparent timings as shown in Figure 56.
Table 21. Serial Management Controller Timing
Num
Characteristic
All Frequencies
Unit
Min
Max
150
SMCLKx clock period
1
1
The ratio SyncCLK/SMCLKx must be greater or equal to 2/1.
100.00
ns
151
SMCLKx width low
50.00
ns
151a
SMCLKx width high
50.00
ns
152
SMCLKx rise/fall time
15.00
ns
153
SMTXDx active delay (from SMCLKx falling edge)
10.00
50.00
ns
154
SMRXDx/SMSYNx setup time
20.00
ns
155
SMRXDx/SMSYNx hold time
5.00
ns
TCLKx
128
TxDx
(Output)
128
TENA(RTSx)
(Input)
NOTES:
1.
2.
Transmit clock invert (TCI) bit in GSMR is set.
If RENA is deasserted before TENA, or RENA is not asserted at all during transmit, then the
CSL bit is set in the buffer descriptor at the end of the frame transmission.
RENA(CDx)
(Input)
(NOTE 2)
133
134
132
131
130
129
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XPC850ZT50B 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Communications Controller Hardware Specifications