PIC18F2331_10 Datasheet, PDF (355/392 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D

PIC18F2331/2431/4331/4431
FIGURE 26-13: EXAMPLE SPI SLAVE MODE TIMING (CKE = 0)
SS
70
SCK
(CKP = 0)
83
71
72
SCK
(CKP = 1)
SDO
SDI
80
MSb
bit 6 - - - - - -1
MSb In
74
73
75, 76
bit 6 - - - -1
LSb
77
LSb In
TABLE 26-13: EXAMPLE SPI MODE REQUIREMENTS (SLAVE MODE, CKE = 0)
Param
No.
Symbol
Characteristic
Min
Max Units Conditions
70
TssL2scH, SS  to SCK  or SCK  Input
TssL2scL
TCY
—
71
TscH
SCK Input High Time
Continuous 1.25 TCY + 30 —
71A
Single byte
40
—
72
TscL
SCK Input Low Time
Continuous 1.25 TCY + 30 —
72A
Single byte
40
—
73
TdiV2scH, Setup Time of SDI Data Input to SCK Edge
TdiV2scL
20
—
73A TB2B
Last Clock Edge of Byte 1 to the First Clock Edge of Byte 2 1.5 TCY + 40 —
74
TscH2diL, Hold Time of SDI Data Input to SCK Edge
TscL2diL
40
—
75
TdoR
SDO Data Output Rise Time
PIC18FXX31
—
25
PIC18LFXX31
—
45
76
TdoF
SDO Data Output Fall Time
—
25
77
TssH2doZ SS  to SDO Output High-Impedance
10
50
80
TscH2doV, SDO Data Output Valid after SCK Edge PIC18FXX31
—
50
TscL2doV
PIC18LFXX31
—
100
83
TscH2ssH, SS  after SCK Edge
TscL2ssH
1.5 TCY + 40 —
Note 1: Requires the use of Parameter 73A.
2: Only if Parameter 71A and 72A are used.
ns
ns
ns (Note 1)
ns
ns (Note 1)
ns
ns (Note 2)
ns
ns
ns
ns
ns
ns
ns
ns
 2010 Microchip Technology Inc.
DS39616D-page 355