SM320C6201_15 Datasheet, PDF (31/76 Pages) Texas Instruments – DIGITAL SIGNAL PROCESSORS

SM320C6201, SMJ320C6201B
DIGITAL SIGNAL PROCESSORS
SGUS028A -- NOVEMBER 1998 -- REVISED JANUARY 1999
INPUT AND OUTPUT CLOCKS (CONTINUED)
switching characteristics for CLKOUT1^†‡ (see Figure 10) (’C6201)
’C6201-150
NO.
PARAMETER
CLKMODE = x4
CLKMODE = x1
MIN
MAX
MIN
MAX
1
t_c(CKO1)
Cycle time, CLKOUT1
P -- 0.7*
2
t_w(CKO1H)
Pulse duration, CLKOUT1 high
(P/2) -- 0.5*
3
t_w(CKO1L)
Pulse duration, CLKOUT1 low
(P/2) -- 0.5*
4
t_t(CKO1)
Transition time, CLKOUT1
† _{PH is the high period of CLKOUT1 in ns and PL is the low period of CLKOUT1 in ns.}
‡ _{P = 1/CPU clock frequency in nanoseconds (ns).}
*This parameter is not production tested.
P + 0.7*
(P/2 )+ 0.5*
(P/2 )+ 0.5*
0.6*
P -- 0.7*
PH -- 0.5*
PL -- 0.5*
P + 0.7*
PH + 0.5*
PL + 0.5*
0.6*
UNIT
ns
ns
ns
ns
switching characteristics for CLKOUT1^†‡ (see Figure 10) (’C6201B)
NO.
PARAMETER
’C6201B-150
’C6201B-200
CLKMODE = x4
CLKMODE = x1
MIN
MAX
MIN
MAX
1
t_c(CKO1)
Cycle time, CLKOUT1
P -- 0.7
2
t_w(CKO1H)
Pulse duration, CLKOUT1 high
(P/2) -- 0.5
3
t_w(CKO1L)
Pulse duration, CLKOUT1 low
(P/2) -- 0.5
4
t_t(CKO1)
Transition time, CLKOUT1
† _{PH is the high period of CLKOUT1 in ns and PL is the low period of CLKOUT1 in ns.}
‡ _{P = 1/CPU clock frequency in nanoseconds (ns).}
P + 0.7
(P/2 ) + 0.5
(P/2 ) + 0.5
0.6
P -- 0.7
PH -- 0.5
PL -- 0.5
P + 0.7
PH + 0.5
PL + 0.5
0.6
UNIT
ns
ns
ns
ns
CLKOUT1
1
4
2
3
4
Figure 10. CLKOUT1 Timings
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