SM320C6201_15 Datasheet, PDF (54/76 Pages) Texas Instruments – DIGITAL SIGNAL PROCESSORS

SM320C6201, SMJ320C6201B
DIGITAL SIGNAL PROCESSORS
SGUS028A -- NOVEMBER 1998 -- REVISED JANUARY 1999
MULTICHANNEL BUFFERED SERIAL PORT TIMING (CONTINUED)
switching characteristics for McBSP^†‡ (see Figure 32)
NO.
1
t_{d(CKSH-CKRXH)}
2
t_c(CKRX)
3
t_w(CKRX)
4
t_d(CKRH-FRV)
9
t_d(CKXH-FXV)
12 t_{dis(CKXH-DXHZ)}
13 t_d(CKXH-DXV)
PARAMETER
Delay time, CLKS high to CLKR/X
high for internal
CLKR/X generated from CLKS
input
Cycle time, CLKR/X
CLKR/X int
Pulse duration, CLKR/X high or
CLKR/X low
CLKR/X int
Delay time, CLKR high to internal
FSR valid
CLKR int
Delay time, CLKX high to internal
FSX valid
CLKX int
CLKX ext
Disable time, DX high impedance
following last data bit from CLKX
high
CLKX int
CLKX ext
Delay time, CLKX high to DX valid
This is also specified by design but
not tested to be the delay time for
data to be low impedance on the
first data bit.
CLKX int
CLKX ext
Delay time, FSX high to DX valid
’C6201-150
MIN MAX
’C6201B-150
’C6201B-200
MIN MAX
UNIT
4*
15*
4
10
ns
2*
2
C -- 1*^¶ C + 1*^¶ C -- 1^¶ C + 1^¶
CLKOUT1
cycles
ns
--2*
4.5*
--2
3
ns
0*
4*
--2
3
ns
3*
16
3
9
0*
4*
--1
4
ns
3*
16*
3
9
0*
4*
--1
4
ns
3*
16
3
9
14 t_d(FXH-DXV)
This is also specified by design but
not tested to be the delay time for
data to be low impedance on the
first data bit.
FSX int
--2*
4*
--1
3
ns
ONLY applies when in data
FSX ext
3*
16*
3
9
delay 0 (XDATDLY = 00b) mode
† _{CLKRP = CLKXP = FSRP = FSXP = 0. If polarity of any of the signals is inverted, then the timing references of that signal are also inverted.}
‡ _{Minimum delay times also represent minimum output hold times.}
*This parameter is not production tested.
¶ _{C = H or L}
H = CLKX high pulse width = (CLKGDV/2 + 1) * T
L = CLKX low pulse width = (CLKGDV/2) * T
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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