mpc5645s Freescale Semiconductor, Inc, mpc5645s Datasheet - Page 127

• Manufacturer Part Number: mpc5645s
• Description: Mpc5645s Microcontroller Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

4.18.13 TCON/RSDS timing
The following notes apply to
1
2
3
Freescale Semiconductor
tskew
There are eight programmable bits to provide 256 different skew numbers with various combinations of these bits.
Default value of all the eight skew options are all “1”.
All “0” combination of eight bits is not valid.
V
V
tplh
tphl
tdz
•
•
•
Symbol
OD
OS
tr
tf
1 2 3
Measurement condition: vdde/vdd33 = 3.3 V ± 10%, vdd = 1.2 V ± 10%, vss/vsse = 0 V, T = –40–150 C
Termination: 100  ± 5%
VREFH_RSDS terminations of 47 F
CC C Differential output voltage RSDS mode
CC C Common mode voltage
CC C Rise time
CC C Fall time
CC D Propagation delay, low to
CC D Propagation delay, high to
CC D Start-up time
CC C Skew between different
C
high
low
RSDS lines
Note: tr and tf measured at 30% and 70% of VDDE
VDDE
Parameter
70%
30%
Table
72:
MPC5645S Microcontroller Data Sheet, Rev. 6
Figure 43. QuadSPI clock profile
Table 72. TCON/RSDS timing
tr
100  termination between
Pad_p and Pad_n
Transition from 20% to 80%
Transition from 20% to 80%
—
—
—
Max and min skew between
clock and data pads
Condition
SCK
tf
1.17
Min
391
606
607
-
-
-
-
Value
2.65
2.47
Typ
200
-
-
-
-
-
Electrical characteristics
Max
471
844
842
1.4
-
-
-
-
Unit SpecID
mV
ps
ps
ns
ns
s
ps
V
A14.1
A14.2
A14.3
A14.4
A14.5
A14.6
A14.7
A14.8
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