Product preview – Texas Instruments TMS320C6454 User Manual
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PRODUCT PREVIEW
1
3
4
MDCLK
MDIO
(input)
1
7
MDCLK
MDIO
(output)
TMS320C6454
Fixed-Point Digital Signal Processor
SPRS311A – APRIL 2006 – REVISED DECEMBER 2006
7.14.4.3 MDIO Electrical Data/Timing
Table 7-90. Timing Requirements for MDIO Input (R)(G)MII (see
-720
-850
NO.
UNIT
-1000
MIN
MAX
1
t
c(MDCLK)
Cycle time, MDCLK
400
ns
2a
t
w(MDCLK)
Pulse duration, MDCLK high
180
ns
2b
t
w(MDCLK)
Pulse duration, MDCLK low
180
ns
3
t
t(MDCLK)
Transition time, MDCLK
5
ns
4
t
su(MDIO-MDCLKH)
Setup time, MDIO data input valid before MDCLK high
10
ns
5
t
h(MDCLKH-MDIO)
Hold time, MDIO data input valid after MDCLK high
10
ns
Figure 7-71. MDIO Input Timing
Table 7-91. Switching Characteristics Over Recommended Operating Conditions for MDIO Output
(see
-720
-850
NO.
PARAMETER
UNIT
-1000
MIN
MAX
7
t
d(MDCLKL-MDIO)
Delay time, MDCLK low to MDIO data output valid
100
ns
Figure 7-72. MDIO Output Timing
204
C64x+ Peripheral Information and Electrical Specifications