Datasheet

2011 Microchip Technology Inc. DS31037B-page 217
PIC24F16KL402 FAMILY
FIGURE 26-9: EXAMPLE SPI SLAVE MODE TIMING (CKE = 1)
TABLE 26-30: EXAMPLE SPI SLAVE MODE REQUIREMENTS (CKE = 1)
Param
No.
Symbol Characteristic Min Max Units Conditions
70 T
SSL2SCH,
T
SSL2SCL
SSx
to SCKx or SCKx Input 3 TCY —ns
70A TSSL2WB SSx to Write to SSPxBUF 3 TCY —ns
71 TSCH SCKx Input High Time
(Slave mode)
Continuous 1.25 TCY + 30 ns
71A Single Byte 40 ns (Note 1)
72 T
SCL SCKx Input Low Time
(Slave mode)
Continuous 1.25 TCY + 30 ns
72A Single Byte 40 ns (Note 1)
73A T
B2B Last Clock Edge of Byte 1 to the First Clock Edge of Byte 2 1.5 TCY + 40 ns (Note 2)
74 TSCH2DIL,
T
SCL2DIL
Hold Time of SDIx Data Input to SCKx Edge 40 ns
75 TDOR SDOx Data Output Rise Time 25 ns
76 TDOF SDOx Data Output Fall Time 25 ns
77 T
SSH2DOZ SSx to SDOx Output High-Impedance 10 50 ns
80 T
SCH2DOV,
T
SCL2DOV
SDOx Data Output Valid After SCKx Edge 50 ns
82 T
SSL2DOV SDOx Data Output Valid After SSx Edge 50 ns
83 T
SCH2SSH,
T
SCL2SSH
SSx
After SCKx Edge 1.5 TCY + 40 ns
F
SCK SCKx Frequency 10 MHz
Note 1: Requires the use of Parameter #73A.
2: Only if Parameter #71A and #72A are used.
SSx
SCKx
(CKP = 0)
SCKx
(CKP = 1)
SDOx
SDI
70
71 72
82
SDIx
74
75, 76
MSb bit 6 - - - - - - 1 LSb
77
bit 6 - - - - 1 LSb In
80
83
73
MSb In
Note: Refer to Figure 26-2 for load conditions.