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TMS320C32PCMA50 Datasheet(PDF) 9 Page - Texas Instruments |
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TMS320C32PCMA50 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 45 page TMS320C32 DIGITAL SIGNAL PROCESSOR SPRS027C – JANUARY 1995 – REVISED DECEMBER 1996 9 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 external memory interface (continued) D For 8-bit-wide physical memory, the STRBx_B2/A–2 and STRBx_B3/A–1 pins function as address pins (least significant address bits) and the STRBx_B0 pin functions as a byte-enable (chip-select) pin. STRBx_B1 is unused. See Figure 2. 8 8-Bit Data Bus CS Data A0 A1 A2 A14 STRB0_B0 STRB0_B2/A –2 STRB0_B3/A –1 A0 A1 . A13 A14 Data 8 A3 . . STRB0_B1 A12 . NC Figure 2. ’C32 With 8-Bit-Wide External Memory D For 16-bit-wide physical memory, the STRBx_B3/A–1 pin functions as an address pin (least significant address bits). The STRBx_B0 and STRBx_B1 pins function as byte-enable (chip-select) pins. STRBx_B2/A–2 is unused. See Figure 3. CS Data A2 . A14 A0 A1 16-Bit Data Bus CS Data A0 A1 A2 . A14 STRB0_B0 STRB0_B1 STRB0_B3/A –1 A0 A1 A2 A13 A14 Data 16 8 8 . . . A3 A3 . STRB0_B2 / A –2 NC Figure 3. ’C32 With 16-Bit-Wide External Memory |
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