Rev. 2.0, 11/00, page 798 of 1037
28.15.5
Register Descriptions
(1) Vertical Sync Signal Threshold Register (VTR)
0
0
1
0
W
2
0
W
3
0
4
0
W
5
0
6
1
7
—
—
—
—
W
W
W
VTR5
VTR4
VTR3
VTR2
VTR1
VTR0
1
Bit :
Initial value :
R/ W :
Sets the threshold for the vertical sync signal when the signal is detected from the composite
sync signal. The threshold is set by bits 5 to 0 (VTR5 to VTR0). Bits 7 and 6 are reserved.
VTR is an 8-bit write-only register. If a read is attempted, an undetermined value is read
out. It is initialized to H'C0 by a reset, stand-by or module stop.
Содержание Hitachi H8S/2191
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