Microchip Technology AC164336 数据表
dsPIC30F1010/202X
DS70000178D-page 254
2006-2014 Microchip Technology Inc.
FIGURE 21-12:
SPIx MODULE MASTER MODE (CKE = 0) TIMING CHARACTERISTICS
TABLE 21-27: SPIx MASTER MODE (CKE = 0) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.3V and 5.0V (±10%)
(unless otherwise stated)
Operating temperature
(unless otherwise stated)
Operating temperature
-40°C
T
A
+85°C for Industrial
-40°C
T
A
+125°C for Extended
Para
m
No.
Symbol
Characteristic
(1)
Min
Typ
(2)
Max
Units
Conditions
SP10 TscL
SCKx Output Low Time
(3)
T
CY
/2
—
—
ns
SP11 TscH
SCKx Output High Time
(3)
T
CY
/2
—
—
ns
SP20 TscF
SCKx Output Fall Time
(4)
—
—
—
ns
See Parameter D032
SP21 TscR
SCKx Output Rise Time
(4)
—
—
—
ns
See Parameter D031
SP30 TdoF
SDOx Data Output Fall Time
(4)
—
—
—
ns
See Parameter D032
SP31 TdoR
SDOx Data Output Rise Time
(4)
—
—
—
ns
See Parameter D031
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
SCKx Edge
—
—
30
ns
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
to SCKx Edge
20
—
—
ns
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
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.
and are not tested.
3:
The minimum clock period for SCKx is 100 ns. Therefore, the clock generated in Master mode must not
violate this specification.
violate this specification.
4:
Assumes 50 pF load on all SPIx pins.
SCKx
(CKP = 0)
(CKP = 0)
SCKx
(CKP = 1)
(CKP = 1)
SDOx
SDIx
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 21-1 for load conditions.
MSb In