Datasheet

© 2011 Microchip Technology Inc. DS61143H-page 173
PIC32MX3XX/4XX
FIGURE 29-12: SPIx MODULE SLAVE MODE (CKE = 0) TIMING CHARACTERISTICS
SSX
SCKX
(CKP = 0)
SCK
X
(CKP = 1)
SDO
X
SP50
SP40
SP41
SP30,SP31
SP51
SP35
MSb LSb
Bit 14 - - - - - -1
MSb In
Bit 14 - - - -1
LSb In
SP52
SP73
SP72
SP72
SP73
SP71 SP70
Note: Refer to Figure 29-1 for load conditions.
SDI
X
TABLE 29-30: SPIx MODULE SLAVE MODE (CKE = 0) 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
SP70 T
SCL SCKx Input Low Time
(3)
TSCK/2
——ns —
SP71 T
SCH SCKx Input High Time
(3)
TSCK/2 — — ns
—
SP72 T
SCF SCKx Input Fall Time — — — ns See parameter DO32
SP73 T
SCR SCKx Input Rise Time —
——
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,
T
SCL2DOV
SDOx Data Output Valid after
SCKx Edge
——
15
ns
V
DD > 2.7V
——
20
ns
V
DD < 2.7V
SP40 T
DIV2SCH,
TDIV2SCL
Setup Time of SDIx Data Input
to SCKx Edge
10
——ns —
SP41 T
SCH2DIL,
TSCL2DIL
Hold Time of SDIx Data Input
to SCKx Edge
10
——ns
—
SP50 T
SSL2SCH,
T
SSL2SCL
SSx
↓ to SCKx ↑ or SCKx Input 175 — — ns —
SP51 T
SSH2DOZ SSx ↑ to SDOx Output
High-Impedance
(3)
5—25ns —
SP52 TSCH2SSH
T
SCL2SSH
SSx
after SCKx Edge TSCK + 20 — — 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.
4: Assumes 50 pF load on all SPIx pins.