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5228-DS08-R 数据表(PDF) 85 Page - Broadcom Corporation. |
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5228-DS08-R 数据表(HTML) 85 Page - Broadcom Corporation. |
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85 / 100 page  Data Sheet BCM5228 7/12/04 Broa d c om Co rp o r a t i o n Document 5228-DS09-405-R Timing and AC Characteristics Page 73 Figure 9: SMII/S3MII Timing Table 54: Auto-Negotiation Timing Parameter Symbol Min Typ Max Unit Link test pulse width – – 100 – ns FLP burst interval – 5.7 16 22.3 ms Clock pulse to clock pulse – 111 123 139 µs Clock pulse to data pulse (data = 1) – 55.5 62.5 69.5 µs Table 55: LED Timing Parameter Symbol Min Typ Max Unit LED on time (ACTLED) – – 80 – ms LED off time (ACTLED) – – 80 – ms Table 56: MII Management Data Interface Timing Parameter Symbol Min Typ Max Unit MDC cycle time – 40 – – ns MDC high/low – 20 – – ns MDC rise/fall time – – – 10 ns MDIO input setup time to MDC rising – 10 – – ns MDIO input hold time from MDC rising – 10 – – ns MDIO output delay from MDC rising – 0 – 30 ns SYNC SCLK STX SRX SRX_DELAY STX_HOLD STX_SETUP SYNC_SETUP SYNC_HOLD TX_ER TX_EN TXD0 TXD1 TXD2 TXD3 TXD4 TXD5 TXD6 TXD7 CRS RX_DV RXD0 RXD1 RXD2 RXD3 RXD4 RXD5 RXD6 RXD7 SYNC_DELAY |
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