SPC5554MZP80R2 Freescale Semiconductor / Motorola, SPC5554MZP80R2 Datasheet - Page 39

• Manufacturer Part Number: SPC5554MZP80R2
• Description: MPC5554 COPPERHEAD
• Manufacturer: Freescale Semiconductor / Motorola

Freescale Semiconductor
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Spec
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All DSPI timing specifications use the fastest slew rate (SRC = 0b11) on pad type M or MH. DSPI signals using pad types
of S or SH have an additional delay based on the slew rate. DSPI timing is specified at: V
and CL = 50 pF with SRC = 0b11.
Speed is the nominal maximum frequency. Max. speed is the maximum speed allowed including frequency modulation (FM).
82 MHz parts allow for 80 MHz system clock + 2% FM; 114 MHz parts allow for 112 MHz system clock + 2% FM; and
132 MHz parts allow for 128 MHz system clock + 2% FM.
The minimum SCK cycle time restricts the baud rate selection for the given system clock rate.
These numbers are calculated based on two MPC55xx devices communicating over a DSPI link.
The actual minimum SCK cycle time is limited by pad performance.
The maximum value is programmable in DSPI_CTARx[PSSCK] and DSPI_CTARx[CSSCK].
The maximum value is programmable in DSPI_CTARx[PASC] and DSPI_CTARx[ASC].
This number is calculated using the SMPL_PT field in DSPI_MCR set to 0b10.
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Data setup time for inputs
Data hold time for inputs
Data valid (after SCK edge)
Data hold time for outputs
Master (MTFE = 0)
Slave
Master (MTFE = 1, CPHA = 0)
Master (MTFE = 1, CPHA = 1)
Master (MTFE = 0)
Slave
Master (MTFE = 1, CPHA = 0)
Master (MTFE = 1, CPHA = 1)
Master (MTFE = 0)
Slave
Master (MTFE = 1, CPHA = 0)
Master (MTFE = 1, CPHA = 1)
Master (MTFE = 0)
Slave
Master (MTFE = 1, CPHA = 0)
Master (MTFE = 1, CPHA = 1)
Characteristic
MPC5554 Microcontroller Data Sheet, Rev. 3.0
Table 26. DSPI Timing
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Symbol
t
t
SUO
t
SUI
t
HO
HI
Min.
5.5
20
–4
20
–4
21
–4
—
—
—
—
–5
–5
2
7
8
80 MHz
1
’
Max.
2
—
—
—
—
—
—
—
—
25
18
—
—
—
—
5
5
(continued)
Min.
5.5
20
20
–4
14
–4
—
—
—
—
–5
–5
2
3
7
4
112 MHz
Max.
25
14
DDEH
—
—
—
—
—
—
—
—
—
—
—
—
5
5
= 3.0–5.25 V;T
Electrical Characteristics
Min.
5.5
20
20
–4
12
–4
–5
–5
—
—
—
—
2
6
7
3
132 MHz
Max.
A
—
—
—
—
—
—
—
—
25
13
—
—
—
—
5
5
= T
L
to T
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
H
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