PIC18F2221 MICROCHIP [Microchip Technology], PIC18F2221 Datasheet - Page 357

• Manufacturer Part Number: PIC18F2221
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 26-14:
TABLE 26-15: EXAMPLE SPI MODE REQUIREMENTS (MASTER MODE, CKE = 1)
© 2007 Microchip Technology Inc.
Param.
71
71A
72
72A
73
73A
74
75
76
78
79
80
81
Note 1:
No.
Note:
(CKP = 0)
(CKP = 1)
SDI
SS
SCK
SCK
SDO
2:
TscH
TscL
TdiV2scH,
TdiV2scL
Tb2b
TscH2diL,
TscL2diL
TdoR
TdoF
TscR
TscF
TscH2doV,
TscL2doV
TdoV2scH,
TdoV2scL
Symbol
Requires the use of Parameter #73A.
Only if Parameter #71A and #72A are used.
Refer to Figure 26-5 for load conditions.
EXAMPLE SPI MASTER MODE TIMING (CKE = 1)
SDO Data Output Rise Time PIC18FXXXX
SCK Input High Time
(Slave mode)
SCK Input Low Time
(Slave mode)
Setup Time of SDI Data Input to SCK Edge
Last Clock Edge of Byte 1 to the 1st Clock Edge
of Byte 2
Hold Time of SDI Data Input to SCK Edge
SDO Data Output Fall Time
SCK Output Rise Time
(Master mode)
SCK Output Fall Time (Master mode)
SDO Data Output Valid after
SCK Edge
SDO Data Output Setup to SCK Edge
81
73
MSb In
MSb
74
71
75, 76
Characteristic
80
72
bit 6 - - - - - -1
bit 6 - - - -1
Preliminary
Continuous
Single Byte
Continuous
Single Byte
PIC18LFXXXX
PIC18FXXXX
PIC18LFXXXX
PIC18FXXXX
PIC18LFXXXX
PIC18F4321 FAMILY
LSb In
LSb
1.25 T
1.25 T
1.5 T
Min
100
100
T
CY
40
40
79
78
—
—
—
—
—
CY
CY
CY
+ 40
+ 30
+ 30
Max Units
100
25
45
25
25
45
25
50
—
—
—
—
—
—
—
—
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
DS39689E-page 355
(Note 1)
(Note 1)
(Note 2)
V
V
V
Conditions
DD
DD
DD
= 2.0V
= 2.0V
= 2.0V