PIC16F639-E/SS【PDF 67/74 页】IC MCU FLASH 2KX14 20SSOP

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Sheet目录3876

63页 64页 65页 66页 [67页]68页 69页 70页 71页

Micrel, Inc.

KSZ8841-PMQL

October 2007

M9999-100407-1.5

List of Figures

Figure 1. KSZ8841-PMQL Function Diagram .................................................................................................................... 1

Figure 2. KSZ8841-PMQL 128-Pin PQFP (Top View)....................................................................................................... 8

Figure 3. Typical Straight Cable Connection ................................................................................................................... 17

Figure 4. Typical Crossover Cable Connection ............................................................................................................... 18

Figure 5. Auto Negotiation and Parallel Operation .......................................................................................................... 19

Figure 6. Port 1 Near-End (Remote) Loopback Path....................................................................................................... 23

Figure 7. EEPROM Read Cycle Timing Diagram ............................................................................................................ 67

Figure 8. Auto-Negotiation Timing ................................................................................................................................... 68

Figure 9. Reset Timing..................................................................................................................................................... 69

Figure 10. 128-Pin PQFP Package.................................................................................................................................. 71

List of Tables

Table 1. MDI/MDI-X Pin Definitions ................................................................................................................................. 17

Table 2. KSZ8841-PMQL EEPROM Format.................................................................................................................... 21

Table 3. KSZ8841-PMQL ConfigParam in EEPROM Format.......................................................................................... 23

Table 4. Format of Port MIB Counters ............................................................................................................................. 63

Table 5. Port 1’s MIB Counters Indirect Memory Offsets................................................................................................. 64

Table 6. EEPROM Timing Parameters ............................................................................................................................ 67

Table 7. Auto Negotiation Parameters ............................................................................................................................. 68

Table 8. Reset Timing Parameters .................................................................................................................................. 69

Table 9. Transformer Selection Criteria ........................................................................................................................... 70

Table 10. Qualified Single Port Magnetics........................................................................................................................ 70

Table 11. Typical Reference Crystal Characteristics ........................................................................................................ 70

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