PIC18F258 Datasheet, PDF (351/384 Pages) Microchip Technology – High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN

PIC18FXX8
FIGURE 27-18: MASTER SSP I²C BUS START/STOP BITS TIMING WAVEFORMS
SCL
SDA
91
90
93
92
START
Condition
Note: Refer to Figure 27-4 for load conditions.
STOP
Condition
TABLE 27-19: MASTER SSP I²C BUS START/STOP BITS REQUIREMENTS
Param
No.
Symbol
Characteristic
Min
90
TSU:STA START condition 100 kHz mode 2(TOSC)(BRG + 1)
Setup time
400 kHz mode 2(TOSC)(BRG + 1)
1 MHz mode⁽¹⁾ 2(TOSC)(BRG + 1)
91
THD:STA START condition 100 kHz mode 2(TOSC)(BRG + 1)
Hold time
400 kHz mode 2(TOSC)(BRG + 1)
1 MHz mode⁽¹⁾ 2(TOSC)(BRG + 1)
92
TSU:STO STOP condition 100 kHz mode 2(TOSC)(BRG + 1)
Setup time
400 kHz mode 2(TOSC)(BRG + 1)
1 MHz mode⁽¹⁾ 2(TOSC)(BRG + 1)
93
THD:STO STOP condition 100 kHz mode 2(TOSC)(BRG + 1)
Hold time
400 kHz mode 2(TOSC)(BRG + 1)
1 MHz mode⁽¹⁾ 2(TOSC)(BRG + 1)
Note 1: Maximum pin capacitance = 10 pF for all I²C pins.
Max Units
Conditions
— ns Only relevant for
—
Repeated START
—
condition
— ns After this period, the
—
first clock pulse is
—
generated
— ns
—
—
— ns
—
—
FIGURE 27-19:
SCL
SDA
In
SDA
Out
MASTER SSP I²C BUS DATA TIMING
103
100
101
90
91
106
107
109
109
Note: Refer to Figure 27-4 for load conditions.
102
92
110
 2002 Microchip Technology Inc.
Preliminary
DS41159B-page 349