Rev. 2.0, 11/00, page 627 of 1037
s = fosc/2
s/2
s/4
Dummy read
External
frequency
signal
(EXTTRG)
Field
detection
signal
WW
W
W
WW
PB
REC
PB
,
ASM
REC/PB
V noise detection signal
REF30
REF30P
Video FF
VD
Match
Mask
Clear
W
R/W
W
Internal bus
R/W
Internal bus
Toggle
RCS
REF30 counter register (16 bit)
OD/EV
VST
FDS
VEG
Edge
detec-
tion
Edge
detec-
tion
VNA
R/W
*
TBC
CVS
REX
Reference period buffer 1 (16 bit)
Reference period register 1 (16 bit)
Comparator (16 bit)
Counter (16 bit)
Note:
*
The TBC bit is available only in the H8S/2194C Series.
Figure 28.6 REF30 Signal Generator
Summary of Contents for Hitachi H8S/2191
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