HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 435

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

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.
ø
SCL
SDA
Legend:
ICCR:
ICMR:
ICSR:
ICDR:
ICXR:
SAR:
SARX:
PS:
canceler
canceler
Noise
Noise
PS
Figure 16.1 Block Diagram of I
I 2 C bus control register
I 2 C bus mode register
I 2 C bus status register
I 2 C bus data register
I 2 C bus extended control register
Slave address register
Slave address register X
Prescaler
Formatless dedicated
clock (IIC_0 only)
Output data
Arbitration
Bus state
decision
control
decision
Clock
circuit
control
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
2
C Bus Interface
SAR, SARX
comparator
generator
Address
Interrupt
ICDRS
ICDRT
ICDRR
Rev. 2.0, 08/02, page 395 of 788
ICCR
ICMR
ICXR
ICSR
Interrupt
request