PIC18F2423 MICROCHIP [Microchip Technology], PIC18F2423 Datasheet - Page 355

• Manufacturer Part Number: PIC18F2423
• Description: 28/40/44-Pin, Enhanced Flash Microcontrollers with 12-Bit A/D and nanoWatt Technology
• Manufacturer: MICROCHIP [Microchip Technology]

FIGURE 26-14:
TABLE 26-16: EXAMPLE SPI MODE REQUIREMENTS (SLAVE MODE TIMING, CKE = 0)
© 2007 Microchip Technology Inc.
70
71
71A
72
72A
73
73A
74
75
76
77
78
79
80
83
Note 1:
Param
No.
(CKP = 0)
(CKP = 1)
SDI
SDI
SS
SCK
SCK
SDO
Note:
2:
TssL2scH,
TssL2scL
TscH
TscL
TdiV2scH,
TdiV2scL
Tb2b
TscH2diL,
TscL2diL
TdoR
TdoF
TssH2doZ SS↑ to SDO Output High-Impedance
TscR
TscF
TscH2doV,
TscL2doV
TscH2ssH,
TscL2ssH
Symbol
Requires the use of Parameter #73A.
Only if Parameter #71A and #72A are used.
Refer to Figure 26-4 for load conditions.
SS ↓ to SCK ↓ or SCK ↑ Input
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 First Clock Edge of Byte 2 1.5 T
Hold Time of SDI Data Input to SCK Edge
SDO Data Output Rise Time
SDO Data Output Fall Time
SCK Output Rise Time (Master mode) PIC18FXXXX
SCK Output Fall Time (Master mode)
SDO Data Output Valid after SCK Edge PIC18FXXXX
SS ↑ after SCK edge
EXAMPLE SPI SLAVE MODE TIMING (CKE = 0)
70
80
71
73
MSb In
MSb
Characteristic
74
72
PIC18F2423/2523/4423/4523
75, 76
Preliminary
bit 6 - - - - - -1
bit 6 - - - -1
Continuous
Single Byte
Continuous
Single Byte
PIC18FXXXX
PIC18LFXXXX
PIC18LFXXXX
PIC18LFXXXX
78
79
1.25 T
1.25 T
1.5 T
79
78
LSb In
LSb
Min
100
100
T
40
40
CY
10
CY
—
—
—
—
—
—
—
—
CY
CY
CY
83
+ 40
+ 40
+ 30
+ 30
77
Max Units Conditions
100
25
45
25
50
25
45
25
50
—
—
—
—
—
—
—
—
—
DS39755B-page 353
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(Note 1)
(Note 1)
(Note 2)
V
V
V
DD
DD
DD
= 2.0V
= 2.0V
= 2.0V