PIC32MX3XX_1 Datasheet, PDF (172/208 Pages) Microchip Technology – High-Performance, General Purpose and USB 32-bit Flash Microcontrollers

PIC32MX3XX/4XX
FIGURE 29-11:
SCKX
(CKP = 0)
SPIx MODULE MASTER MODE (CKE = 1) TIMING CHARACTERISTICS
SP36
SP11
SP10
SP21
SP20
SCKX
(CKP = 1)
SP35
SP20
SP21
SDOX
MSb
Bit 14 - - - - - -1
SP30,SP31
SDIX
SP40
MSb In
SP41
Bit 14 - - - -1
Note: Refer to Figure 29-1 for load conditions.
LSb
LSb In
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°Cfor Industrial
Param.
No.
Symbol
Characteristics⁽¹⁾
Min. Typical⁽²⁾ Max. Units
Conditions
SP10 TSCL
SCKx Output Low Time
TSCK/2
—
— nsec
—
(Note 3)
SP11 TSCH
SCKx Output High Time
TSCK/2
—
— nsec
—
(Note 3)
SP20 TSCF
SCKx Output Fall Time
(Note 4)
—
—
— nsec _{See parameter DO32.}
SP21 TSCR
SP30 TDOF
SP31 TDOR
SCKx Output Rise Time
—
(Note 4)
SDOx Data Output Fall Time
—
(Note 4)
SDOx Data Output Rise Time —
(Note 4)
—
— nsec See parameter DO31.
—
— ^nsec See parameter DO32.
—
— ^nsec See parameter DO31.
SP35 TSCH2DOV, SDOx Data Output Valid after
—
TSCL2DOV SCKx Edge
—
SP36 TDOV2SC, SDOx Data Output Setup to
15
TDOV2SCL First SCKx Edge
SP40 TDIV2SCH, Setup Time of SDIx Data Input ₁₅
TDIV2SCL to SCKx Edge
20
—
15 nsec
—
20 nsec
—
— nsec
—
— nsec
—
— nsec
VDD > 2.7V
VDD < 2.7V
—
VDD > 2.7V
VDD < 2.7V
Note 1:
2:
3:
4:
These parameters are characterized, but not tested in manufacturing.
Data in “Typical” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only
and are not tested.
The minimum clock period for SCKx is 40 nsec. Therefore, the clock generated in Master mode must not
violate this specification.
Assumes 50 pF load on all SPIx pins.
DS61143G-page 172
© 2010 Microchip Technology Inc.