PIC24F16KL402 Datasheet, PDF (137/260 Pages) Microchip Technology – Low-Power, Low-Cost, General Purpose 16-Bit Flash Microcontrollers with nanoWatt XLP Technology

PIC24F16KL402 FAMILY
FIGURE 17-3:
MSSP BLOCK DIAGRAM (I²C™ MODE)
Read
Write
Internal Data Bus
SCLx
SDAx
SSPxBUF
Shift
Clock
SSPxSR
MSb
LSb
Address Mask
Match Detect Address Match
SSPxADD
Start and
Stop bit Detect
Set/Reset S, P bits
Note: Only port I/O names are shown in this diagram. Refer to the text for a full list of multiplexed functions.
FIGURE 17-4:
MSSP BLOCK DIAGRAM (I²C™ MASTER MODE)
Internal Data Bus
Read
Write
SSPxBUF
SSPM<3:0>
SSPxADD<6:0>
SDAx
SCLx
SDAx In
SSPxSR
Shift
Clock
MSb
LSb
Start bit, Stop bit,
Acknowledge
Generate
Baud
Rate
Generator
Start bit Detect ^{Clock Cntl}
RCV Enable
SCLx In
Stop bit Detect
Write Collision Detect
Clock Arbitration
Clock Arbitrate/WCOL Detect
(hold off clock source)
Bus Collision State Counter for
Set/Reset S, P (SSPxSTAT), WCOL
end of XMIT/RCV
Set SSPxIF, BCLxIF
Reset ACKSTAT, PEN
 2011 Microchip Technology Inc.
DS31037B-page 137