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IDT RC32434 Function Ethernet Interfaces EJTAG / JTAG System Pin Name Type Buffer I/O Type MIICL MIICRS MIIRXCLK MIIRXD[3:0] MIIRXDV MIIRXER MIITXCLK MIITXD[3:0] MIITXENP MIITXER MIIMDC MIIMDIO JTAG_TMS EJTAG_TMS JTAG_TRST_N JTAG_TCK JTAG_TDO JTAG_TDI CLK EXTBCV EXTCLK COLDRSTN RSTN I I I I I I I O O O O I/O I I I I O I I I O I I/O LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL LVTTL STI STI STI STI STI STI STI Low Drive Low Drive Low Drive Low Drive Low Drive STI STI STI STI Low Drive STI STI STI High Drive STI Low Drive / STI Internal Resistor Notes1 pull-down pull-down pull-up pull-up pull-down pull-down pull-up pull-up pull-up pull-up pull-up pull-up pull-up pull-down pull-up pull-up on board Table 2 Pin Characteristics (Part 2 of 2) 1. External pull-up required in most system applications. Some applications 2. may require additional pull-ups not identified in this table. Use a 2.2K pull-up resistor for I2C pins. 11 of 53 January 19, 2006
