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MPC8315CVRADDA データシート(PDF) 25 Page - Freescale Semiconductor, Inc |
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MPC8315CVRADDA データシート(HTML) 25 Page - Freescale Semiconductor, Inc |
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25 / 106 page  MPC8315E PowerQUICC II Pro Processor Hardware Specifications, Rev. 2 Freescale Semiconductor 25 Ethernet: Three-Speed Ethernet, MII Management 9.1 eTSEC (10/100/1000 Mbps)—MII/RMII/RGMII/RTBI Electrical Characteristics The electrical characteristics specified here apply to all the media-independent interface (MII), reduced gigabit MII (RGMII), and reduced ten-bit interface (RTBI) signals except management data input/output (MDIO) and management data clock (MDC). The MII and RMII is defined for 3.3 V, while the RGMII, and RTBI can operate at 2.5 V. The RGMII and RTBI follow the Hewlett-Packard reduced pin-count interface for Gigabit Ethernet Physical Layer Device Specification Version 1.2a (9/22/2000). The electrical characteristics for MDIO and MDC are specified in Section 9.3, “Ethernet Management Interface Electrical Characteristics.” 9.1.1 MII, RMII, RGMII, and RTBI DC Electrical Characteristics All MII, RMII drivers and receivers comply with the DC parametric attributes specified in Table 23 for 3.3-V operation and RGMII, RTBI drivers and receivers comply with the DC parametric attributes specified in Table 24. The RGMII and RTBI signals are based on a 2.5 V CMOS interface voltage as defined by JEDEC EIA/JESD8–5. NOTE eTSEC should be interfaced with peripheral operating at same voltage level. Table 23. MII/RMII (When Operating at 3.3 V) DC Electrical Characteristics Parameter Symbol Conditions Min Max Unit Supply voltage 3.3 V LVDD —— 3.0 3.6 V Output high voltage VOH IOH = –4.0 mA LVDD = Min 2.40 LVDD + 0.3 V Output low voltage VOL IOL = 4.0 mA LVDD = Min VSS 0.50 V Input high voltage VIH —— 2.1 LVDD + 0.3 V Input low voltage VIL — — –0.3 0.90 V Input high current IIH VIN 1 = LVDD — 40 A Input low current IIL VIN 1 = VSS –600 — A Note: 1. The symbol VIN, in this case, represents the LVIN symbol referenced in Table 1 and Table 2. Table 24. RGMII/RTBI (When Operating at 2.5 V) DC Electrical Characteristics Parameters Symbol Conditions Min Max Unit Supply voltage 2.5 V LVDD — — 2.37 2.63 V Output high voltage VOH IOH = –1.0 mA LVDD = Min 2.00 LVDD + 0.3 V Output low voltage VOL IOL = 1.0 mA LVDD = Min VSS– 0.3 0.40 V Input high voltage VIH — LVDD = Min 1.7 LVDD + 0.3 V Input low voltage VIL — LVDD =Min –0.3 0.70 V Input high current IIH VIN 1 = LVDD — 15 A Input low current IIL VIN 1 = VSS –15 — A |
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