Datasheet

dsPIC30F2011/2012/3012/3013
DS70139G-page 172 © 2010 Microchip Technology Inc.
FIGURE 20-12: SPI MODULE MASTER MODE (CKE = 0) TIMING CHARACTERISTICS
TABLE 20-29: 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 TA +125°C for Extended
Param
No.
Symbol Characteristic
(1)
Min Typ
(2)
Max Units Conditions
SP10 TscL SCKX Output Low Time
(3)
TCY/2 ns
SP11 TscH SCK
X Output High Time
(3)
TCY/2 ns
SP20 TscF SCKX Output Fall Time
(4
ns See parameter
DO32
SP21 TscR SCK
X Output Rise Time
(4)
ns See parameter
DO31
SP30 TdoF SDOX Data Output Fall Time
(4)
ns See parameter
DO32
SP31 TdoR SDOX Data Output Rise Time
(4)
ns See parameter
DO31
SP35 TscH2doV,
TscL2doV
SDO
X Data Output Valid after
SCK
X Edge
30 ns
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDI
X Data Input
to SCK
X Edge
20 ns
SP41 TscH2diL,
TscL2diL
Hold Time of SDI
X Data Input
to SCKX 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 SCK is 100 ns. Therefore, the clock generated in Master mode must not
violate this specification.
4: Assumes 50 pF load on all SPI 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 20-3 for load conditions.