HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 513

• Manufacturer Part Number: HD6417144
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Figure 14.1 is a block diagram of the I
connection of I
operate in the same way as pins driven by an open-drain NMOS transistor. The voltage that can be
applied to the I/O pins depends on the supply voltage of the LSI.
Pφ
SCL
SDA
[Legend]
ICCR:
ICMR:
ICSR:
ICDR:
SCRX:
SAR:
SARX:
PS:
2
I
I
I
I
Serial control register X
Slave address register
Slave address register X
Prescaler
2
2
2
2
C bus interfaces. Since the I/O pins are driven only by the NMOS transistor, they
C control register
C mode register
C status register
C data register
canceller
canceller
Noise
Noise
PS
Figure 14.1 A Block Diagram of the I
detection circuit
detection circuit
control cricuit
Output data
Arbitration
control
Bus state
Clock
2
C bus interface. Figure 14.2 shows an example of the
Rev.4.00 Mar. 27, 2008 Page 469 of 882
Address comparater
SAR, SARX
2
generation
C Bus Interface
ICDRS
ICDRR
ICDRT
Interrupt
SCRX
ICMR
ICCR
ICSR
circuit
14. I
2
C Bus Interface (IIC) Option
REJ09B0108-0400
Interrupt request