Datasheet

© 2010 Microchip Technology Inc. DS70135G-page 203
dsPIC30F4011/4012
FIGURE 24-16: SPI MODULE MASTER MODE (CKE = 0) TIMING CHARACTERISTICS
SCK1
(CKP = 0)
SCK1
(CKP = 1)
SDO1
SDI1
SP11 SP10
SP40
SP41
SP21
SP20
SP35
SP20
SP21
MSb
LSb
Bit 14 - - - - - -1
LSb In
Bit 14 - - - -1
SP30
SP31
Note: Refer to Figure 24-2 for load conditions.
MSb In
TABLE 24-32: SPI MASTER MODE (CKE = 0) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 5.5V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤ T
A ≤ +125°C for Extended
Param
No.
Symbol Characteristic
(1)
Min Typ
(2)
Max Units Conditions
SP10 TscL SCK1 Output Low Time
(3)
TCY/2 — — ns
SP11 TscH SCK1 Output High Time
(3)
TCY/2 — — ns
SP20 TscF SCK1 Output Fall Time
(4
— — — ns See parameter DO32
SP21 TscR SCK1 Output Rise Time
(4)
— — — ns See parameter DO31
SP30 TdoF SDO1 Data Output Fall Time
(4)
— — — ns See parameter DO32
SP31 TdoR SDO1 Data Output Rise
Time
(4)
— — — ns See parameter DO31
SP35 TscH2doV,
TscL2doV
SDO1 Data Output Valid after
SCK1 Edge
——30ns
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDI1 Data Input
to SCK1 Edge
20 — — ns
SP41 TscH2diL,
TscL2diL
Hold Time of SDI1 Data Input
to SCK1 Edge
20 — — ns
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ” column is at 5V, 25°C unless otherwise stated. Parameters are for design guidance only and
are not tested.
3: The minimum clock period for SCK1 is 100 ns. Therefore, the clock generated in Master mode must not
violate this specification.
4: Assumes 50 pF load on all SPI pins.