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S3C4530A Datasheet(PDF) 14 Page - Samsung semiconductor |
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S3C4530A Datasheet(HTML) 14 Page - Samsung semiconductor |
14 / 432 page ![]() PRODUCT OVERVIEW S3C4530A 1-14 Table 1-2. S3C4530A Pin List and PAD Type Group Pin Name Pin Counts I/O Type Pad Type Description System XCLK 1 I ptic S3C4530A system source clock. Configuration MCLKO 1 O pob4 System clock out. (8) CLKSEL 1 I ptic Clock select. nRESET 1 I ptis Not reset. CLKOEN 1 I ptic Clock out enable/disable. TMODE 1 I ptic Test mode. LITTLE 1 I pticd Little endian mode select pin FILTER 1 I pia_bb PLL filter pin TAP Control TCK 1 I ptic JTAG test clock. (5) TMS 1 I pticu JTAG test mode select. TDI 1 I pticu JTAG test data in. TDO 1 O ptot2 JTAG test data out. nTRST 1 I pticu JTAG not reset. Memory ADDR[21:0] 22 O ptot6 Address bus. Interface XDATA[31:0] 32 I/O ptbsut6 External, bi-directional, 32-bit data bus. (83) nRAS[3:0] 4 O ptot4 Not row address strobe for DRAM. nCAS[3:0] 4 O ptot4 Not column address strobe for DRAM. nDWE 1 O ptot4 Not write enable for DRAM. nECS[3:0] 4 O ptot4 Not external I/O chip select. nEWAIT 1 I ptic Not external wait signal. nRCS[5:0] 6 O ptot4 Not ROM/SRAM/flash chip select. B0SIZE[1:0] 2 I ptic Bank 0 data bus access size. nOE 1 O ptot4 Not output enable. nWBE[3:0] 4 O ptot4 Not write byte enable. ExtMREQ 1 I ptic External master bus request. ExtMACK 1 O pob1 External bus acknowledge. |