Datasheet

© 2011 Microchip Technology Inc. DS70118J-page 173
dsPIC30F2010
FIGURE 22-18: SPI MODULE SLAVE MODE (CKE = 0) TIMING CHARACTERISTICS
TABLE 22-34: SPI MODULE SLAVE 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 ≤ T
A ≤ +125°C for Extended
Param
No.
Symbol Characteristic
(1)
Min Typ
(2)
Max Units Conditions
SP70 TscL SCK
X Input Low Time 30 — — ns See Note 3
SP71 TscH SCKX Input High Time 30 — — ns See Note 3
SP72 TscF SCKX Input Fall Time
(3)
—1025ns —
SP73 TscR SCKX Input Rise Time
(3)
—1025ns —
SP30 TdoF SDO
X Data Output Fall Time
(3)
— — — ns See parameter
DO32
SP31 TdoR SDO
X Data Output Rise Time
(3)
— — — ns See parameter
DO31
SP35 TscH2doV,
TscL2doV
SDO
X Data Output Valid after
SCK
X Edge
— — 30 ns —
SP40 TdiV2scH,
TdiV2scL
Setup Time of SDIX Data Input
to SCK
X Edge
20 — — ns —
SP41 TscH2diL,
TscL2diL
Hold Time of SDIX Data Input
to SCK
X Edge
20 — — ns —
SP50 TssL2scH,
TssL2scL
SSX↓ to SCKX↑ or SCKX↓ Input 120 — — ns —
SP51 TssH2doZ SS
X↑ to SDOX Output
High-Impedance
(3)
10 — 50 ns —
SP52 TscH2ssH
TscL2ssH
SSX after SCK Edge 1.5 TCY +40 — — 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 SPI pins.
SS X
SCK X
(CKP = 0 )
SCK
X
(CKP = 1 )
SDO
X
SDI
SP50
SP40
SP41
SP30,SP31
SP51
SP35
SDI X
MSb LSb
BIT14 - - - - - -1
MSb IN BIT14 - - - -1 LSb IN
SP52
SP73
SP72
SP72
SP73
SP71 SP70
Note: Refer to Figure 22-2 for load conditions.