MA160014 Microchip Technology, MA160014 Datasheet - Page 239
MA160014
Manufacturer Part Number
MA160014
Description
MOD PLUG-IN 44PIN PIC18LF45K22
Manufacturer
Microchip Technology
Series
PIC® XLP™ 18Fr
Datasheet
1.PIC18F26J13-ISS.pdf
(496 pages)
Specifications of MA160014
Accessory Type
Plug-In Module (PIM) - PIC18LF45K10
Product
Microcontroller Modules
Data Bus Width
8 bit
Core Processor
PIC18LF45K22
Interface Type
I2C, SPI
Operating Supply Voltage
1.8 V to 5.5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
PICDEM PIC18 Explorer, DM183032
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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15.6.2 CLOCK ARBITRATION
Clock arbitration occurs when the master, during any
receive, transmit or Repeated Start/Stop condition,
releases the SCLx pin (SCLx allowed to float high).
When the SCLx pin is allowed to float high, the Baud
Rate Generator (BRG) is suspended from counting
until the SCLx pin is actually sampled high. When the
SCLx pin is sampled high, the Baud Rate Generator is
reloaded with the contents of SSPxADD<7:0> and
begins counting. This ensures that the SCLx high time
will always be at least one BRG rollover count in the
event that the clock is held low by an external device
(Figure
FIGURE 15-25:
15.6.3 WCOL STATUS FLAG
If the user writes the SSPxBUF when a Start, Restart,
Stop, Receive or Transmit sequence is in progress, the
WCOL is set and the contents of the buffer are
unchanged (the write does not occur). Any time the
WCOL bit is set it indicates that an action on SSPxBUF
was attempted while the module was not Idle.
2010 Microchip Technology Inc.
Note:
15-25).
Because queueing of events is not
allowed, writing to the lower 5 bits of
SSPxCON2 is disabled until the Start
condition is complete.
SDAx
SCLx
BRG
Value
BRG
Reload
BAUD RATE GENERATOR TIMING WITH CLOCK ARBITRATION
03h
DX
SCLx deasserted but slave holds
SCLx low (clock arbitration)
02h
SCLx is sampled high, reload takes
place and BRG starts its count
01h
Preliminary
BRG decrements on
Q2 and Q4 cycles
00h (hold off)
PIC18(L)F2X/4XK22
DX ‚
–
1
SCLx allowed to transition high
03h
02h
DS41412D-page 239
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