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MT90883 Datasheet(PDF) 16 Page - Zarlink Semiconductor Inc |
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MT90883 Datasheet(HTML) 16 Page - Zarlink Semiconductor Inc |
16 / 97 page MT90880/1/2/3 Data Sheet 16 Zarlink Semiconductor Inc. Table 7 - RMII Interface 3.4 PCI Interface The PCI signals are NOT 5 V tolerant. All PCI outputs are high impedance while S_RST is low. Active low signals are designated by a # suffix, in accordance with the convention used in the PCI specification. Signal I/O Package Balls Description ref_clk I U AB11 Synchronous clock reference for receive, transmit and control interface. Common to both RMII ports. RMII Port A rm0_rxd[1:0] I U AE9 [1], AD9 [0] Receive data rm0_rxdv/ crs I D AF7 Carrier sense & receive data valid rm0_txen O U AD6 Transmit enable rm0_txd[1:0] O U AE6 [1], AD7 [0] Transmit data RMII Port B rm1_rxd[1:0] I U AE13 [1], AF13 [0] Receive data rm1_rxdv/ crs I D AE12 Carrier sense & receive data valid rm1_txen O U AD10 Transmit enable rm1_txd[1:0] O U AF10 [1], AD11 [0] Transmit data Signal I/O Package Balls Description pci_clk I AF20 PCI clock pci_rst# I AE19 PCI reset pci_req# O AC19 PCI request pci_gnt# I AD19 PCI grant pci_ad[31:0] I O AE20 [31], AB19 [30], AF21 [29], AC20 [28], AD20 [27], AE21 [26], AF22 [25], AD21 [24], AF23 [23], AD22 [22], AE23 [21], AC21 [20], AE24 [19], AC22 [18], AD24 [17], AC23 [16], AC26 [15], AB25 [14], W23 [13], AA24 [12], AB26 [11], AA25 [10], Y24 [9], AA26 [8], V24 [7], U23 [6], V25 [5], T23 [4] T24 [3], R23 [2], T25 [1], T26 [0] PCI address / data pci_cbe[3:0]# I O AE22 [3], AB23 [2], Y23 [1], W24 [0] PCI control / byte enable pci_par I O AC25 PCI parity pci_frame# I O AE25 PCI frame |
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