h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 596

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 15 I
15.1.2
Figure 15-1 shows a block diagram of the I
Figure 15-2 shows an example of I/O pin connections to external circuits. Channel 0 I/O pins are
NMOS open drains, and it is possible to apply voltages in excess of the power supply (V
voltage for this LSI. Set the upper limit of voltage applied to the power supply (V
range + 0.3 V, i.e. 5.8 V. Channel 1 I/O pins are driven solely by NMOS, so in terms of
appearance they carry out the same operations as an NMOS open drain. However, the voltage
which can be applied to the I/O pins depends on the voltage of the power supply (V
Rev. 6.00 Feb 22, 2005 page 536 of 1484
REJ09B0103-0600
Wait function in slave mode (I
Three interrupt sources
Selection of 16 internal clocks (in master mode)
Direct bus drive (with SCL and SDA pins)
A wait request can be generated by driving the SCL pin low after data transfer, excluding
acknowledgement. The wait request is cleared when the next transfer becomes possible.
Data transfer end (including transmission mode transition with I
reception after loss of master arbitration)
Address match: when any slave address matches or the general call address is received in
slave receive mode (I
Stop condition detection
Two pins—P35/SCL0 and P34/SDA0—(normally NMOS push-pull outputs) function as
NMOS open-drain outputs when the bus drive function is selected.
Two pins—P33/SCL1 and P32/SDA1—(normally CMOS pins) function as NMOS-only
outputs when the bus drive function is selected.
Block Diagram
2
C Bus Interface [Option] (Only for the H8S/2638, H8S/2639, and H8S/2630)
2
C bus format)
2
C bus format)
2
C bus interface.
2
C bus format and address
CC
CC
) power supply
) of this LSI.
CC
)