Datasheet

dsPIC33F
DS70165E-page 332 Preliminary © 2007 Microchip Technology Inc.
FIGURE 26-16: 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 26-1 for load conditions.
SDI
X
TABLE 26-33: 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 —
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: Assumes 50 pF load on all SPIx pins.