Section 17 I
2
C Bus Interface (IIC)
Rev. 3.00 Jan 25, 2006 page 475 of 872
REJ09B0286-0300
SCL
PS
Noise
canceler
Bus state
decision
circuit
Arbitration
decision
circuit
ICCR
Clock
control
Command
control
Timeout
decision
circuit
ICMR
ICSR
*
1
*
2
ICSRA
ICSRB
ICSRC
ICCNT
Adapter
ICCRX
ICCMD
ICDRS
Address comparator
SAR, SARX
SDA
Interrupt
generator
Legend:
Notes:
ICCR
ICMR
ICSR
ICDR
SAR
SARX
ICCNT
ICCRX
ICCMD
:
:
:
:
:
:
:
:
:
I
2
C bus control register
I
2
C bus mode register
I
2
C bus status register
I
2
C bus data register
Slave address register
Second slave address register
IIC operation reservation adapter count register
IIC operation reservation adapter control register
IIC operation reservation adapter command register
Internal data bus
ICDRR
ICDRT
ICDRX(W)
ICDRX(R)
1. ICDRX write = ICDRT write
2. ICDRX read = ICDRR read
Output data
conrol
circuit
Noise
canceler
Interrupt
request
φ
ICSRA
ICSRB
ICSRC
ICDRX
ICDRT
ICDRS
ICDRR
PS
:
:
:
:
:
:
:
:
IIC operation reservation adapter status register A
IIC operation reservation adapter status register B
IIC operation reservation adapter status register C
IIC operation reservation adapter data register
IIC data transmit buffer
IIC data shift register
IIC data receive buffer
Prescaler
Figure 17.1 Block Diagram of I
2
C Bus Interface
Summary of Contents for H8S/2158
Page 10: ...Rev 3 00 Jan 25 2006 page viii of lii...
Page 36: ...Rev 3 00 Jan 25 2006 page xxxiv of lii B Product Lineup 863 C Package Dimensions 864 Index 865...
Page 47: ...Rev 3 00 Jan 25 2006 page xlv of lii Appendix Figure C 1 Package Dimensions TBP 112A 864...
Page 54: ...Rev 3 00 Jan 25 2006 page lii of lii...
Page 70: ...Section 1 Overview Rev 3 00 Jan 25 2006 page 16 of 872 REJ09B0286 0300...
Page 118: ...Section 3 MCU Operating Modes Rev 3 00 Jan 25 2006 page 64 of 872 REJ09B0286 0300...
Page 126: ...Section 4 Exception Handling Rev 3 00 Jan 25 2006 page 72 of 872 REJ09B0286 0300...
Page 198: ...Section 6 Bus Controller Rev 3 00 Jan 25 2006 page 144 of 872 REJ09B0286 0300...
Page 326: ...Section 10 8 Bit PWM Timer PWM Rev 3 00 Jan 25 2006 page 272 of 872 REJ09B0286 0300...
Page 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Page 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
Page 742: ...Section 19 Multimedia Card Interface MCIF Rev 3 00 Jan 25 2006 page 688 of 872 REJ09B0286 0300...
Page 750: ...Section 21 D A Converter Rev 3 00 Jan 25 2006 page 696 of 872 REJ09B0286 0300...
Page 768: ...Section 22 A D Converter Rev 3 00 Jan 25 2006 page 714 of 872 REJ09B0286 0300...
Page 770: ...Section 23 RAM Rev 3 00 Jan 25 2006 page 716 of 872 REJ09B0286 0300...
Page 824: ...Section 26 Clock Pulse Generator Rev 3 00 Jan 25 2006 page 770 of 872 REJ09B0286 0300...
Page 844: ...Section 27 Power Down Modes Rev 3 00 Jan 25 2006 page 790 of 872 REJ09B0286 0300...
Page 878: ...Section 28 List of Registers Rev 3 00 Jan 25 2006 page 824 of 872 REJ09B0286 0300...
Page 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...