Datasheet

PIC32MX5XX/6XX/7XX
DS60001156J-page 376  2009-2016 Microchip Technology Inc.
FIGURE 32-10: SPIx MODULE MASTER MODE (CKE = 0) TIMING CHARACTERISTICS
TABLE 32-28: SPIx MASTER MODE (CKE = 0) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  T A  +85°C for Industrial
-40°C  T
A  +105°C for V-Temp
Param.
No.
Symbol Characteristics
(1)
Min. Typical
(2)
Max. Units Conditions
SP10 T SC L
SCKx Output Low Time
(3)
T SCK /2 — — ns —
SP11 T
SC H SCKx Output High Time
(3)
T SCK /2
——ns —
SP20 T
SC F SCKx Output Fall Time
(4)
———ns
See parameter DO32
SP21 T
SC R SCKx Output Rise Time
(4)
—
——
ns
See parameter DO31
SP30 T
DO F SDOx Data Output Fall Time
(4)
—
——
ns
See parameter DO32
SP31 T
DO R SDOx Data Output Rise
Time
(4)
—
——
ns
See parameter DO31
SP35 T
SC H2 DO V,
T
SC L2 DO V
SDOx Data Output Valid after
SCKx Edge
——
15
ns V
DD > 2.7V
——
20
ns V
DD < 2.7V
SP40 T
DI V2 SC H,
T
DI V2 SC L
Setup Time of SDIx Data Input
to SCKx Edge
10
——ns —
SP41 T
SC H2 DI L,
T
SC L2 DI L
Hold Time of SDIx Data Input
to SCKx Edge
10
——ns —
Note 1: These parameters are characterized, but not tested in manufacturing.
2: Data in “Typical” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance
only and are not tested.
3: The minimum clock period for SCKx is 40 ns. Therefore, the clock generated in Master mode must not
violate this specification.
4: Assumes 50 pF load on all SPIx pins.
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SDIx
SP11 SP10
SP40
SP41
SP21
SP20
SP35
SP20
SP21
MSb LSb
Bit 14 - - - - - -1
MSb In
LSb In
Bit 14 - - - -1
SP30
SP31
Note: Refer to Figure 32-1 for load conditions.