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PIC18LF252-ISP Datasheet, PDF (286/332 Pages) Microchip Technology – High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D | |||
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PIC18FXX2
FIGURE 22-18: MASTER SSP I2C BUS START/STOP BITS TIMING WAVEFORMS
SCL
SDA
91
90
93
92
START
Condition
Note: Refer to Figure 22-4 for load conditions.
STOP
Condition
TABLE 22-17: 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
â ns Only relevant for
â
Repeated START
condition
â
â ns After this period, the
â
first clock pulse is
â
generated
â ns
â
â
â ns
â
â
FIGURE 22-19:
SCL
SDA
In
SDA
Out
MASTER SSP I2C BUS DATA TIMING
103
100
101
90
91
106
107
109
109
Note: Refer to Figure 22-4 for load conditions.
102
92
110
DS39564C-page 284
© 2006 Microchip Technology Inc.
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