Datasheet

PIC32MX3XX/4XX
DS61143H-page 172 © 2011 Microchip Technology Inc.
FIGURE 29-11: SPIx MODULE MASTER MODE (CKE = 1) TIMING CHARACTERISTICS
TABLE 29-29: SPIx MODULE MASTER MODE (CKE = 1) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤ TA ≤ +105°C for V-Temp
Param.
No.
Symbol Characteristics
(1)
Min. Typical
(2)
Max. Units Conditions
SP10 TSCL
SCKx Output Low Time
(3)
TSCK/2 — — ns —
SP11 T
SCH SCKx Output High Time
(3)
TSCK/2 — — ns —
SP20 TSCF SCKx Output Fall Time
(4)
———ns
See parameter DO32
SP21 T
SCR SCKx Output Rise Time
(4)
—
——
ns
See parameter DO31
SP30 T
DOF SDOx Data Output Fall Time
(4)
—
——
ns
See parameter DO32
SP31 T
DOR SDOx Data Output Rise Time
(4)
—
——
ns
See parameter DO31
SP35 T
SCH2DOV,
TSCL2DOV
SDOx Data Output Valid after
SCKx Edge
——
15
ns VDD > 2.7V
——
20
ns V
DD < 2.7V
SP36 T
DOV2SC,
T
DOV2SCL
SDOx Data Output Setup to
First SCKx Edge
15
——ns —
SP40 T
DIV2SCH,
T
DIV2SCL
Setup Time of SDIx Data Input
to SCKx Edge
15
——ns V
DD > 2.7V
20 — — ns V
DD < 2.7V
SP41 T
SCH2DIL,
T
SCL2DIL
Hold Time of SDIx Data Input
to SCKx Edge
15
——ns V
DD > 2.7V
20 — — ns V
DD < 2.7V
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)
SCK
X
(CKP = 1)
SDO
X
SDIX
SP36
SP30,SP31
SP35
MSb
MSb In
Bit 14 - - - - - -1
LSb In
Bit 14 - - - -1
LSb
Note: Refer to Figure 29-1 for load conditions.
SP11 SP10
SP20
SP21
SP21
SP20
SP40
SP41