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SM320C6701GJCA12EP 데이터시트(PDF) 11 Page - Texas Instruments |
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SM320C6701GJCA12EP 데이터시트(HTML) 11 Page - Texas Instruments |
11 / 65 page SM320C6701EP, SM320C6701MECHEP FLOATINGPOINT DIGITAL SIGNAL PROCESSOR SGUS042A − MAY 1998 − REVISED APRIL 2004 11 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 Signal Descriptions (Continued) SIGNAL TYPE† DESCRIPTION NAME NO. TYPE† DESCRIPTION EMIF − CONTROL SIGNALS COMMON TO ALL TYPES OF MEMORY CE3 AE22 O/Z CE2 AD26 O/Z Memory space enables CE1 AB24 O/Z • Enabled by bits 24 and 25 of the word address CE0 AC26 O/Z • Only one asserted during any external data access BE3 AB25 O/Z Byte-enable control BE2 AA24 O/Z • Decoded from the two lowest bits of the internal address BE1 Y23 O/Z • Byte-write enables for most types of memory BE0 AA26 O/Z • Can be directly connected to SDRAM read and write mask signal (SDQM) EMIF − ADDRESS EA21 J26 EA20 K25 EA19 L24 EA18 K26 EA17 M26 EA16 M25 EA15 P25 EA14 P24 EA13 R25 EA12 T26 O/Z External address (word address) EA11 R23 O/Z External address (word address) EA10 U26 EA9 U25 EA8 T23 EA7 V26 EA6 V25 EA5 W26 EA4 V24 EA3 W25 EA2 Y26 † I = Input, O = Output, Z = High Impedance, S = Supply Voltage, GND = Ground |
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