Datasheet

dsPIC33FJXXXGPX06/X08/X10
DS70286C-page 278 © 2009 Microchip Technology Inc.
FIGURE 25-11: SPIx MODULE SLAVE MODE (CKE = 0) TIMING CHARACTERISTICS
SSX
SCKX
(CKP = 0 )
SCKX
(CKP = 1 )
SDOX
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 25-1 for load conditions.
SDI
X
TABLE 25-30: SPIx MODULE SLAVE MODE (CKE = 0) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C
Param
No.
Symbol Characteristic
(1)
Min Typ
(2)
Max Units Conditions
SP70 TscL SCKx Input Low Time 30 — — ns —
SP71 TscH SCKx Input High Time 30 — — ns —
SP72 TscF SCKx Input Fall Time
(3)
—1025ns —
SP73 TscR SCKx Input Rise Time
(3)
—1025ns —
SP30 TdoF SDOx Data Output Fall Time
(3)
— — — ns See parameter D032
SP31 TdoR SDOx Data Output Rise Time
(3)
— — — ns See parameter D031
SP35 TscH2doV,
TscL2doV
SDOx Data Output Valid after
SCKx Edge
— — 30 ns —
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIx Data Input
to SCKx Edge
20 — — ns —
SP41 TscH2diL,
TscL2diL
Hold Time of SDIx Data Input
to SCKx Edge
20 — — ns —
SP50 TssL2scH,
TssL2scL
SSx
↓ to SCKx ↑ or SCKx Input 120 — — ns —
SP51 TssH2doZ SSx
↑ to SDOx Output
High-Impedance
(3)
10 — 50 ns —
SP52 TscH2ssH
TscL2ssH
SSx
after SCKx Edge 1.5 TCY + 40 — — ns —
Note 1: These parameters are characterized but not tested in manufacturing.
2: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated.
3: Assumes 50 pF load on all SPIx pins.