CHAPTER 17 SERIAL INTERFACE IIC0
Preliminary User’s Manual U17260EJ3V1UD
407
Figure 17-1. Block Diagram of Serial Interface IIC0
Internal bus
IIC status register 0 (IICS0)
IIC control register 0 (IICC0)
Slave address
register 0 (SVA0)
Noise
eliminator
Noise
eliminator
Bus status
detector
Match
signal
IIC shift
register 0 (IIC0)
SO latch
IICE0
D Q
Set
Clear
CL01,
CL00
TRC0
DFC0
DFC0
SDA0/
P61
SCL0/
P60
Data hold
time correction
circuit
Start
condition
generator
Stop
condition
generator
ACK
generator
Wake-up
controller
ACK detector
Output control
Stop condition
detector
Serial clock
counter
Interrupt request
signal generator
Serial clock
controller
Serial clock
wait controller
Prescaler
INTIIC0
IIC shift register 0 (IIC0)
IICC0.STT0, SPT0
IICS0.MSTS0, EXC0, COI0
IICS0.MSTS0,
EXC0, COI0
f
PRS
LREL0 WREL0 SPIE0 WTIM0 ACKE0 STT0 SPT0
MSTS0 ALD0 EXC0 COI0 TRC0 ACKD0 STD0 SPD0
Start condition
detector
Internal bus
CLD0 DAD0 SMC0 DFC0 CL01 CL00
CLX0
IIC clock selection
register 0 (IICCL0)
STCF
IICBSY STCEN IICRSV
IIC flag register 0
(IICF0)
IIC function expansion
register 0 (IICX0)
N-ch open-
drain output
PM61
Output latch
(P61)
N-ch open-
drain output
PM60
Output latch
(P60)
EXSCL0/
P62