h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 503

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

Receive Operation Using the HNDS Function (HNDS = 1):
Figure 16.11 shows the sample flowchart for the operations in master receive mode (HNDS = 1).
Figure 16.11 Sample Flowchart for Operations in Master Receive Mode
No
No
Read IRIC flag in ICCR
Set ACKB = 0 in ICSR
Set HNDS = 1 in ICXR
Set ACKB = 1 in ICSR
Clear IRIC flag in ICCR
Read IRIC flag in ICCR
Clear IRIC flag in ICCR
Clear IRIC flag in ICCR
Set TRS = 0 in ICCR
Master receive mode
Set TRS = 1 in ICCR
Set BBSY = 0 and
SCP = 0 in ICCR
Last receive?
Read ICDR
Read ICDR
Read ICDR
IRIC = 1?
IRIC = 1?
End
Yes
Yes
No
Yes
[1] Select receive mode.
[2] Start receiving. The first read is a dummy read.
[5] Read the receive data (for the second and subsequent read)
[3] Wait for 1 byte to be received.
[4] Clear IRIC flag.
[6] Set acknowledge data for the last reception.
[7] Read the receive data.
[8] Wait for 1 byte to be received.
[9] Clear IRIC flag.
[10] Read the receive data.
[11] Set stop condition issuance.
(HNDS = 1)
(Set IRIC at the rise of the 9th clock for the receive frame)
Dummy read to start receiving if the first frame is
the last receive data.
Generate stop condition.
Section 16 I
Rev. 3.00 Mar 21, 2006 page 449 of 788
2
C Bus Interface (IIC) (Optional)
REJ09B0300-0300