Rev. 1.0, 02/00, page 587 of 1141
Cleared
Cleared
Value set in reference
period register 1 (RFD)
FDS bit = 1
Counter mask
(Clear signal mask)
Counter
Value set in REF30
counter register (RFC)
REF30
VD (except in PB)
REC(ASM)
PB
Toggle mask
REC/PB
REF30P
Masking
period
Masking
period
25% max.
Figure 26.20 Generation of the Reference Signal when PB is Switched to REC
where RFD Bit is 1 (3)