Renesas H8S/2111B - Manual (Page 213)

Rev. 1.00, 05/04, page 179 of 544
φ
Address OCR address
Internal write
signal
Compare-match
signal
FRC
Write data
Disabled
OCR N M
N N + 1
T
1
T
2
Write cycle of OCR
Figure 9.19 Conflict between OCR Write and Compare-Match
(When Automatic Addition Function is Not Used)
φ
Address
OCRAR (OCRAF)
address
Internal write signal
Compare-match signal
FRC
Automatic addition is not performed
because compare-match signals are disabled.
Disabled
OCR N
N N+1
OCRAR (OCRAF) Old data New data
Figure 9.20 Conflict between OCRAR/OCRAF Write and Compare-Match
(When Automatic Addition Function is Used)