h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 535

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

Note: This restriction on usage can be canceled by setting the FNC1 and FNC0 bits to 1 in
IRIC
Figure 16.31 Flowchart for Start Condition Issuance Instruction for Retransmission and
SDA
SCL
ICXR.
[1] IRIC determination
Write transmit data to ICDR
Yes
Yes
Clear IRIC in ICSR
SCP = 0 (ICSR)
ACK
Set BBSY = 1,
Read SCL pin
Start condition
SCL = Low?
IRIC = 1?
issuance?
IRIC = 1?
[2] Determination of SCL = Low
9
Yes
Yes
No
No
No
No
[3] (Retransmission) Start condition instruction issuance
Other processing
[1]
[2]
[3]
[4]
[5]
Timing
Start condition generation
(retransmission)
[4] IRIC determination
Section 16 I
[1] Wait for end of 1-byte transfer
[2] Determine whether SCL is low
[3] Issue start condition instruction for retransmission
[4] Determine whether start condition is generated or not
[5] Set transmit data (slave address + R/W)
Note:* Program so that processing from [3] to [5]
Rev. 3.00 Mar 21, 2006 page 481 of 788
[5] ICDR write (transmit data)
is executed continuously.
2
C Bus Interface (IIC) (Optional)
bit7
REJ09B0300-0300