Competition Between Writing And Comparing Match With The Ocr - Renesas Hitachi H8S/2194 Series Hardware Manual

17.7.3

Competition between Writing and Comparing Match with the OCR

When a comparing match occurs under the T2 state where the OCRA and OCRB are under the
writing cycle, the priority will be given to writing of the OCR and the comparing match signal
will be prohibited.
Figure 17.15 shows the timing chart in this case.
Address
Internal writing
Comparing match
Figure 17.15 Competition between Writing and Comparing Match with the OCR
Writing cycle with the OCR
signal
FRC N
OCR N
signal
T1 T2
OCR address
N+1
M
Writing data
Will be prohibited
Rev. 2.0, 11/00, page 387 of 1037