TMS320F240_08 Datasheet, PDF (78/105 Pages) Texas Instruments – DSP CONTROLLER

TMS320F240
DSP CONTROLLER
SPRS042E – OCTOBER 1996 – REVISED NOVEMBER 2002
XF, BIO, and MP/MC timings
switching characteristics over recommended operating conditions (see Figure 34)
PARAMETER
MIN
td(XF)
Delay time, CLKOUT high to XF high/low
MAX UNIT
11 ns
timing requirements over recommended operating conditions [H = 0.5t_c(CO)] (see Figure 34)
MIN
MAX UNIT
tw(BIOL)
Pulse duration, BIO low
2H + 16
ns
tw(MPMCV)
Pulse duration, MP/MC valid^†
2H + 24
ns
† _{This is the minimum time the MP/MC pin needs to be stable in order to be recognized by internal logic; however, for proper operation, the user}
must maintain a valid level for the duration of the entire memory access (or accesses) on- or off-chip.
CLKOUT/IOPC1
XF
MP/MC
td(XF)
tw(MPMCV)^†
Valid
tw(BIOL)
BIO
† _{This is the minimum time the MP/MC pin needs to be stable in order to be recognized by internal logic; however, for proper}
operation, the user must maintain a valid level for the duration of the entire memory access (or accesses) on- or off-chip.
Figure 34. XF, BIO, and MP/MC Timings
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