CHAPTER 10 SERIAL INTERFACE FUNCTION
User’s Manual U13850EJ6V0UD
335
Figure 10-23. Block Diagram of I
2
C
Internal bus
IIC status register n (IICSn)
IIC control register n
(IICCn)
Slave address
register n (SVAn)
Noise
eliminator
Noise
eliminator
Bus status
detector
Match signal
IIC shift
register n (IICn)
SO latch
IICEn
D Q
Set
Clear
CLn1,
CLn0
SDAn
SCLn
N-ch open-drain
output
N-ch open-drain
output
Data hold time
correction
circuit
Start
condition
generator
ACK output
circuit
Wakeup controller
ACK detector
Stop condition
detector
Serial clock counter
Interrupt request
signal generator
Serial clock controller
Serial clock
wait controller
Prescaler
INTIICn
fxx
TMx output
LRELn WRELn SPIEn WTIMn ACKEn STTn SPTn
MSTSn ALDn EXCn COIn TRCn ACKDn STDn SPDn
Start condition
detector
Internal bus
CLDn DADn SMCn DFCn CLn1 CLn0
CLXn
IIC clock selection
register n (IICCLn)
IICCEn1 IICCEn0
IIC clock expansion
register n (IICCEn)
STCFn IICBSYn STCENn IICRSVn
IIC flag register n
(IICFn)
IIC function expansion
register n (IICXn)
Remarks 1.
n = 0, 1
2.
TMx output
n = 0: TM2 output
n = 1: TM3 output
Содержание V850/SB1
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