KSZ8081RNA 查看數據表（PDF） - Micrel

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KSZ8081RNA

10Base-T/100Base-TX PHY with RMII Support

Micrel 

Micrel, Inc.

KSZ8081RNA/KSZ8081RND

List of Tables

Table 1. RMII Signal Definition............................................................................................................................................. 15

Table 2. RMII Signal Connection for RMII Back-to-Back Mode (100Base-TX Copper Repeater) ...................................... 18

Table 3. MII Management Frame Format for the KSZ8081RNA/RND ................................................................................ 19

Table 4. MDI/MDI-X Pin Definition ....................................................................................................................................... 20

Table 5. NAND Tree Test Pin Order for KSZ8081RNA/RND .............................................................................................. 23

Table 6. KSZ8081RNA/RND Power Pin Description ........................................................................................................... 26

Table 7. Typical Current/Power Consumption (VDDA_3.3 = 3.3V, VDDIO = 3.3V) ............................................................ 27

Table 8. Typical Current/Power Consumption (VDDA_3.3 = 3.3V, VDDIO = 2.5V) ............................................................ 27

Table 9. Typical Current/Power Consumption (VDDA_3.3 = 3.3V, VDDIO = 1.8V) ............................................................ 28

Table 10. RMII Timing Parameters – KSZ8081RNA/RND (25MHz input to XI pin, 50MHz output from REF_CLK pin) .... 41

Table 11. RMII Timing Parameters – KSZ8081RNA/RND (50MHz input to XI pin) ............................................................ 41

Table 12. Auto-Negotiation Fast Link Pulse (FLP) Timing Parameters ............................................................................... 42

Table 13. MDC/MDIO Timing Parameters ........................................................................................................................... 43

Table 14. Power-Up/Reset Timing Parameters ................................................................................................................... 44

Table 15. 25MHz Crystal / Reference Clock Selection Criteria ........................................................................................... 47

Table 16. 50MHz Oscillator / Reference Clock Selection Criteria ....................................................................................... 47

Table 17. Magnetics Selection Criteria ................................................................................................................................ 49

Table 18. Compatible Single-Port 10/100 Magnetics........................................................................................................... 49

February 6, 2014

7

Revision 1.1

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