Datasheet

 2010-2012 Microchip Technology Inc. DS41412F-page 461
PIC18(L)F2X/4XK22
FIGURE 27-19: MASTER SSP I
2
C™ BUS START/STOP BITS TIMING WAVEFORMS
FIGURE 27-20: MASTER SSP I
2
C™ BUS DATA TIMING
Note: Refer to Figure 27-6 for load conditions.
91
93
SCL
SDA
Start
Condition
Stop
Condition
90
92
TABLE 27-18: MASTER SSP I
2
C™ BUS START/STOP BITS REQUIREMENTS
Param.
No.
Symbol Characteristic Min Max Units Conditions
90 T
SU:STA
Start Condition 100 kHz mode 2(TOSC)(BRG + 1) — ns Only relevant for
Repeated Start
condition
Setup Time 400 kHz mode 2(T
OSC)(BRG + 1) —
1 MHz mode
(1)
2(TOSC)(BRG + 1) —
91 T
HD:STA
Start Condition 100 kHz mode 2(TOSC)(BRG + 1) — ns After this period, the
first clock pulse is
generated
Hold Time 400 kHz mode 2(T
OSC)(BRG + 1) —
1 MHz mode
(1)
2(TOSC)(BRG + 1) —
92 TSU:STO
Stop Condition 100 kHz mode 2(TOSC)(BRG + 1) — ns
Setup Time 400 kHz mode 2(T
OSC)(BRG + 1) —
1 MHz mode
(1)
2(TOSC)(BRG + 1) —
93 THD:STO
Stop Condition 100 kHz mode 2(TOSC)(BRG + 1) — ns
Hold Time 400 kHz mode 2(T
OSC)(BRG + 1) —
1 MHz mode
(1)
2(TOSC)(BRG + 1) —
Note 1: Maximum pin capacitance = 10 pF for all I
2
C pins.
Note: Refer to Figure 27-6 for load conditions.
90
91 92
100
101
103
106
107
109
109
110
102
SCL
SDA
In
SDA
Out