Microchip Technology MA330011 Data Sheet
dsPIC33F
DS70165E-page 214
Preliminary
©
2007 Microchip Technology Inc.
FIGURE 18-1:
I
2
C™ BLOCK DIAGRAM (
X
= 1 OR 2)
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
Control
T
CY
/2
Start and Stop
Bit Generation
Acknowledge
Generation
Collision
Detect
I2CxCON
I2CxSTAT
Cont
rol Log
ic
Read
LSb
Write
Read
I2CxBRG
I2CxRSR
Write
Read
Write
Read
Write
Read
Write
Read
Write
Read
I2CxMSK
I2CxRCV