Rev. 1.0, 02/00, page 344 of 1141
16.7.3
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 16.15 shows the timing chart.
φ
Address
OCR address
Internal writing
signal
Comparing match
signal
FRC
Writing data
Will be prohibited
OCR
N
M
N
N+1
T1
T2
Writing cycle with the OCR
Figure 16.15 Competition between Writing and Comparing Match with the OCR