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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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CS49310 데이터시트(PDF) 51 Page - Cirrus Logic |
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CS49310 데이터시트(HTML) 51 Page - Cirrus Logic |
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51 / 86 page  CS49300 Family DSP DS339PP4 51 32K X 8 ROM/RAM ADDR[14:8] ADDR[7:0] 8 BIT '574 DFF DQ 8 BIT '574 DFF DQ EMAD[7:0] DATA[7:0] OE EMOE EXTMEM CS EMWR Only one of R1 and R2 shou ld be stuffed. Only one of R3 and R4 shou ld be stuffed. T h e state of EMOE and EMWR at the rising edge of RESET will determine the serial mode that the part comes up in while using exter nal memory. Please see section 2, Serial Communication for more d etails. ADDR[7:0] ADDR[14:8] 8 3.3V 3.3V 3.3V 3.3V R1 R3 R2 R4 WE (RAM Only) CS493XX Figure 30. External Memory Interface EXTMEM EMOE EMWR EMAD7:0 MA15:8 MA7:0 Data7:0 MA 23:16 Figure 31. External Memory Read (16-bit address) EXTMEM EMOE EMWR EMAD7:0 MA15:8 MA7:0 Data7:0 MA 23:16 Figure 32. External Memory Write (16-bit address) |
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