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PIC18F45J10 Datasheet, PDF (321/358 Pages) Microchip Technology – 28/40/44-Pin High-Performance RISC Microcontrollers with nanoWatt Technology | |||
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PIC18F45J10 FAMILY
FIGURE 23-12: EXAMPLE SPI⢠SLAVE MODE TIMING (CKE = 0)
SSx
70
SCKx
(CKP = 0)
71
72
78
SCKx
(CKP = 1)
80
79
SDOx
MSb
bit 6 - - - - - - 1
SDIx
Note:
75, 76
MSb In
74
73
Refer to Figure 23-3 for load conditions.
bit 6 - - - - 1
83
79
78
LSb
77
LSb In
TABLE 23-16: EXAMPLE SPI⢠MODE REQUIREMENTS (SLAVE MODE TIMING, CKE = 0)
Param
No.
Symbol
Characteristic
Min
Max Units Conditions
70
TSSL2SCH, SSx â to SCKx â or SCKx â Input
TSSL2SCL
TCY
â
71
TSCH
71A
SCKx Input High Time
(Slave mode)
Continuous
Single Byte
1.25 TCY + 30 â
40
â
72
TSCL
72A
SCKx Input Low Time
(Slave mode)
Continuous
Single Byte
1.25 TCY + 30 â
40
â
73
TDIV2SCH, Setup Time of SDIx Data Input to SCKx Edge
TDIV2SCL
100
â
73A TB2B
Last Clock Edge of Byte 1 to the First Clock Edge of Byte 2 1.5 TCY + 40 â
74
TSCH2DIL, Hold Time of SDIx Data Input to SCKx Edge
TSCL2DIL
100
â
75
TDOR
SDOx Data Output Rise Time
â
25
76
TDOF
SDOx Data Output Fall Time
â
25
77
TSSH2DOZ SSx â to SDOx Output High-Impedance
10
50
78
TSCR
SCKx Output Rise Time (Master mode)
â
25
79
TSCF
SCKx Output Fall Time (Master mode)
â
25
80
TSCH2DOV, SDOx Data Output Valid after SCKx Edge
TSCL2DOV
â
50
83
TSCH2SSH, SSx â after SCKx Edge
TSCL2SSH
1.5 TCY + 40 â
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
© 2007 Microchip Technology Inc.
Preliminary
DS39682C-page 319
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