W90221X Winbond Electronics Corp America, W90221X Datasheet - Page 92

• Manufacturer Part Number: W90221X
• Description: Pa-risc Embedded Controller
• Manufacturer: Winbond Electronics Corp America

Vertical Retrace Start/End Register (VRSE)
Port address: 0x00000168
Bits 0-5
Bits 6-15
Bits 16-21
Bits 22-31
W90221X version 0.6
16
24
0
8
17
25
1
9
Reserved
Vertical retrace start
This 10-bit value specifies the scan line at which the vertical retrace
becomes active.
Reserved
Vertical retrace end
This 10-bit value specifies the scan line at which the vertical retrace
becomes inactive.
10
18
26
2
Reserved
Reserved
Access type: read/write
11
19
27
3
VRS [2:9]
VRE [2:9]
12
20
28
4
13
21
29
5
14
22
30
6
VRS [0:1]
VRE [0:1]
Default: 0x---
15
23
31
7
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