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SC220-66 Datasheet(PDF) 6 Page - Zarlink Semiconductor Inc |
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SC220-66 Datasheet(HTML) 6 Page - Zarlink Semiconductor Inc |
6 / 34 page PRELIMINARY INFORMATION XpressFlow-2020 Series – SC220 Ethernet Switch Chipset XpressFlow Engine © 1998 Vertex Networks, Inc. 5 Rev. 4.5 – February 1999 Pin No(s). Symbol Type Name & Functions XpressFlow Bus Interface 185,184,183,182,180, 179,177,176,175,174, 172,171,169,168,167, 166,164,163,160,159, 157,156,154,153,151, 150,149,148,146,145, 143,142 P_D[31:0] TTL I/O-TS (5VT) Management Bus – Data Bit [31:0] 211,210,208,207,205, 204,203,202,201,199, 198 P_A[11:1] TTL Input (5VT) Management Bus – Address Bit [11:1] 196 P_ADS# TTL Input (5VT) Management Bus – Address Strobe 191 P_RWC TTL Input (5VT) Management Bus – Read/Write Control 183 P_RDY# CMOS Out- OD Management Bus – Data Ready 184 P_BS16# CMOS Out- OD Management Bus – 16 bit Data Bus 185 P_CS# TTL Input (5VT) Management Bus – Chip Select 189 P_RSTIN# TTL In-ST (5VT) System RESET Input 190 P_RSTOUT CMOS Output CPU RESET Output 192 P_INT CMOS Output Management Bus – Interrupt Request 187 P_CLK TTL Input (5VT) CPU Clock Control Buffer Memory Interface 60,59,58,57,56,54,53,51, 50,49,48,47,46,45,43,42, 40,39,38,37,36,34,33,30, 29,27,26,25,24,23,22,21, L_D[31:0] TTL I/O-TS Local Memory Bus – Data Bit [31:0] 8,6,5,3,2,1,256,255,254, 253,251,250,248,247, 246,245,244 L_A[18:2] CMOS Output Local Memory Bus – Address Bit [17:2] 9 L_A[19] / L_OE[3]# CMOS Output Local Memory Bus – Address Bit [19:18] or Memory Read Chip Select [3] 63, 11, 19 L_OE[2:0]# CMOS Output Local Memory Bus- Read Chip Select [2:0] 242, 62, 10, 18 L_WE[3:0]#, CMOS Output Local Memory Bus – Write Chip Select [3:0] 12,13,14,15 L_BWE[3:0]# CMOS Output Local Memory Bus – Byte Write Enable [3:0] 16 L_ADSC# CMOS Output Local Memory Bus – Controller Address Status 66 L_CLK CMOS Output Local Memory Bus – Synchronous Clock |
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