Microchip Technology AC164139 Data Sheet

Page of 408
PIC24FJ256DA210 FAMILY
DS39969B-page 224
 2010 Microchip Technology Inc.
FIGURE 16-1:
I
2
C™ BLOCK DIAGRAM    
I2CxRCV
Internal
Data Bus
SCLx
SDAx
Shift
Match Detect
I2CxADD
Start and Stop 
Bit Detect
Clock
Address Match
Clock
Stretching
I2CxTRN
LSB
Shift Clock
BRG Down Counter
Reload
Control
T
CY
/2
Start and Stop
Bit Generation
Acknowledge
Generation
Collision
Detect
I2CxCON
I2CxSTAT
Cont
ro
l Logic
Read
LSB
Write
Read
I2CxBRG
I2CxRSR
Write
Read
Write
Read
Write
Read
Write
Read
Write
Read
I2CxMSK