h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 483

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Note: Hatching boxes represent SSU internal operations.
[1]
[2]
[4]
[5]
[6]
No
Read received data in SSRDR
Read received data in SSRDR
RDRF automatically cleared
Continuous data reception?
Overrun error processing
Dummy-read SSRDR
Clear ORER in SSSR
Read SSRDR
End reception
End reception
Initialization
ORER = 1?
RDRF = 1?
RE = 0
Start
Figure 16.8 Example of Data Reception Flowchart
Yes
Yes
No
Yes
No
Section 16 Synchronous Serial Communication Unit (SSU)
[3]
[1]
[2]
[3], [6] Receive error processing:
[4]
[5]
reception is not resumed.
Initialization:
Specify the settings such as receive data format.
Start reception:
When SSRDR is dummy-read with RE = 1,
reception is started.
When a receive error occurs execute the
designated error processing after reading the
ORER bit in SSSR. After that, clear the ORER
bit to 0. While the ORER bit is set to 1,
To continue single reception:
When continuing single reception, the next single
reception starts after reading received data in SSRDR.
To complete reception:
To complete reception, read received data after
clearing the RE bit to 0. When reading SSRDR without
clearing the RE bit, reception is resumed.
Rev. 3.00 Oct 04, 2005 page 443 of 598
REJ09B0155-0300