mpc5645s Freescale Semiconductor, Inc, mpc5645s Datasheet - Page 125

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

4.18.12 QuadSPI timing
The following notes apply to
The numbers in
Freescale Semiconductor
Tcq
Symbol
Ts
Th
tr
tf
•
•
•
•
•
•
•
•
SDA
SCL
All data is based on a negative edge data launch from MPC5645S and a positive edge data capture, as shown in the
timing diagrams in this section.
The supply conditions, over a temperature range of -45 C to 125 C/150 C, are as follows:
— IO voltage: 3.0 V, Core supply: 1.2 V
— IO voltage: 3.3 V, Core supply: 1.2 V
— IO voltage: 3.6 V, Core supply: 1.2 V
The actual frequency at which the device can work will be a combination of this data and the clock pad profile.
All measurements are considering 70% of VDDE levels for clock pin and 50% of VDDE level for data pins.
Timings assume a setting of 0x0000_000x for QSPI_SMPR register (see the reference manual for details).
A negative value of hold is an indication of pad delay on the clock pad (delay b/w actual edge capturing data in the
device vs. edge appearing at the pin).
Measurements are with a load of 50 pF on output pins
The clock profile is measured at 30% to 70% levels of VDDE.
CC T Clock to Q delay
CC T Setup time for incoming data
CC T Hold time requirement for incoming data
CC T Clock pad rise time
CC T Clock pad fall time
C
Figure 41
1
Table 70. QuadSPI timing specifications, maximum temperature 125 C
and
Table 70
Figure 42
2
and
MPC5645S Microcontroller Data Sheet, Rev. 6
Parameter
correspond to events as described in
Table
Figure 40. I
4
71:
6
2
C input/output timing
7
Min
–13
Table
3.8
7.6
0.5
0.8
8
71.
Value
5
–8.5
Typ
5.3
0.7
0.8
9
3
Electrical characteristics
Max
12.1
13.2
–7.5
1.0
1.2
Unit SpecID
ns
ns
ns
ns
ns
9
A13.1
A13.2
A13.3
A13.4
A13.5
125