h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 469

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Figure 16.1 shows a block diagram of the I
pin connections to external circuits. Since I
normal port pins, they have different specifications for permissible applied voltages. For details,
see section 28, Electrical Characteristics.
SCL
SDA
Legend:
ICCR:
ICMR:
ICSR:
ICDR:
ICXR:
SAR:
SARX:
PS:
canceler
canceler
Noise
Noise
PS
I
I
I
I
I
Slave address register
Slave address register X
Prescaler
Figure 16.1 Block Diagram of I
2
2
2
2
2
C bus control register
C bus mode register
C bus status register
C bus data register
C bus extended control register
Formatless dedicated
clock (IIC_0 only)
Output data
Arbitration
Bus state
decision
decision
control
Clock
control
circuit
circuit
circuit
2
2
C bus interface. Figure 16.2 shows an example of I/O
C bus interface I/O pins are different in structure from
Section 16 I
Rev. 3.00 Mar 21, 2006 page 415 of 788
2
C Bus Interface
SAR, SARX
comparator
generator
Address
Interrupt
ICDRS
ICDRR
ICDRT
ICMR
ICXR
ICCR
ICSR
2
C Bus Interface (IIC) (Optional)
REJ09B0300-0300
Interrupt
request