Datasheet

© 2010 Microchip Technology Inc. DS70139G-page 173
dsPIC30F2011/2012/3012/3013
FIGURE 20-13: SPI MODULE MASTER MODE (CKE =1) TIMING CHARACTERISTICS
TABLE 20-30: SPI MODULE MASTER MODE (CKE = 1) 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 SCKX output low time
(3)
TCY/2 — — ns —
SP11 TscH SCKX output high time
(3)
TCY/2 — — ns —
SP20 TscF SCKX output fall time
(4)
— — — ns See parameter
DO32
SP21 TscR SCKX output rise time
(4)
— — — ns See parameter
DO31
SP30 TdoF SDO
X 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
——30ns —
SP36 TdoV2sc,
TdoV2scL
SDO
X data output setup to
first SCKX 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 SCK
X 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)
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 20-3 for load conditions.
SP11 SP10
SP20
SP21
SP21
SP20
SP40
SP41