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TMS320C31PQL80 датащи(PDF) 21 Page - Texas Instruments |
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TMS320C31PQL80 датащи(HTML) 21 Page - Texas Instruments |
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21 / 48 page ![]() TMS320C31, TMS320LC31 DIGITAL SIGNAL PROCESSORS SPRS035B – MARCH 1996 – REVISED JANUARY 1999 21 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 XF0 and XF1 timing when executing LDFI or LDII The following tables define the timing parameters for XF0 and XF1 during execution of LDFI or LDII. The numbers shown in Figure 15 correspond with those in the NO. column of the tables below. timing parameters for XF0 and XF1 when executing LDFI or LDII for TMS320C31 (see Figure 15) NO. ’LC31-33 ’C31-40 ’LC31-40 ’C31-50 ’C31-60 ’C31-80 UNIT MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX 25 td(H3H-XF0L) Delay time, H3 high to XF0 low 15 13 12 11 8 ns 26 tsu(XF1-H1L) Setup time, XF1 before H1 low 10 9 9 8 6 ns 27 th(H1L-XF1) Hold time, XF1 after H1 low 0 0 0 0 0 ns H3 H1 STRB R/W A D RDY XF0 Pin XF1 Pin Fetch LDFI or LDII Decode Read Execute 25 26 27 Figure 15. Timing for XF0 and XF1 When Executing LDFI or LDII |
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