Renesas Hitachi H8S/2194 Series Hardware Manual page 676

REC/PB
VD (except in PB)
Value set in reference
period register 1 (RFD)
Counter
Value set in REF30
counter register (RFC)
Toggle mask
Counter mask
(Clear signal mask)
REF30
REF30P
Figure 28.21 Generation of the Reference Signal when PB is Switched to REC
PB
Masking
period
Masking
period
where RFD Bit is 1 (4)
REC(ASM)
Cleared
Max. 25%
FDS bit = "1"
Rev. 2.0, 11/00, page 649 of 1037
Cleared