PIC18F2480_09 Datasheet, PDF (453/490 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology

PIC18F2480/2580/4480/4580
FIGURE 28-18: MASTER SSP I²C™ BUS START/STOP BITS TIMING WAVEFORMS
SCL
SDA
91
90
93
92
Start
Condition
Stop
Condition
TABLE 28-20: MASTER SSP I²C™ BUS START/STOP BITS REQUIREMENTS
Param.
No.
Symbol
Characteristic
Min
Max Units
Conditions
90
TSU:STA Start condition 100 kHz mode 2(TOSC)(BRG + 1) — ns Only relevant for
Setup Time
400 kHz mode 2(TOSC)(BRG + 1) —
1 MHz mode⁽¹⁾ 2(TOSC)(BRG + 1)
—
Repeated Start condi-
tion
91
THD:STA Start Condition 100 kHz mode 2(TOSC)(BRG + 1) — ns After this period, the first
Hold Time
400 kHz mode 2(TOSC)(BRG + 1) —
clock pulse is generated
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(TOSC)(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(TOSC)(BRG + 1) —
1 MHz mode⁽¹⁾ 2(TOSC)(BRG + 1)
—
Note 1: Maximum pin capacitance = 10 pF for all I²C pins.
FIGURE 28-19:
SCL
SDA
In
SDA
Out
MASTER SSP I²C™ BUS DATA TIMING
103
100
101
90
91
106
107
109
109
102
92
110
© 2009 Microchip Technology Inc.
DS39637D-page 453