
Multimedia Registers
16-1
`efmp69030 Databook
Revision 1.3 11/24/99
Chapter 16
Multimedia Registers
Introduction
Chapter 16 describes the Multimedia Registers for the 69030 Dual HiQVideo Accelerator.
Table 16-1:
Multimedia Registers
Name
Register Function
Access Via
3D3h
Index at 3D2h
Set to Value
MR00
Module Capability Register
read-only
00h
MR01
Secondary Capability Register
read-only
01h
MR02
Capture Control 1 Register
read/write
02h
MR03
Capture Control 2 Register
read/write
03h
MR04
Capture Control 3 Register
read/write
04h
MR05
Capture Control 4 Register
read/write
05h
MR06-08
Capture Memory Address PTR1 Registers
read/write
06h-08h
MR09-0B
Capture Memory Address PTR2 Registers
read/write
09h-0Bh
MR0C
Capture Memory Width (Span) Register
read/write
0Ch
MR0E
Capture Window X-LEFT Low Register
read/write
0Eh
MR0F
Capture Window X-LEFT High Register
read/write
0Fh
MR10
Capture Window X-RIGHT Low Register
read/write
10h
MR11
Capture Window X-RIGHT High Register
read/write
11h
MR12
Capture Window Y-TOP Low Register
read/write
12h
MR13
Capture Window Y-TOP High Register
read/write
13h
MR14
Capture Window Y-BOTTOM Low Register
read/write
14h
MR15
Capture Window Y-BOTTOM High Register
read/write
15h
MR16
H-SCALE Register
read/write
16h
MR17
V-SCALE Register
read/write
17h
MR18
Capture Frame/Field Drop Count Register
read/write
18h
MR1E/9E
Playback Control 1 Register
read/write
1Eh/9Eh
MR1F/9F
Playback Control 2 Register
read/write
1Fh/9Fh
MR20/A0
Playback Control 3 Register
read/write
20h/A0h
MR21/A1
Double Buffer Status & Control Register
read/write
21h/A1h
MR22/A2-24/A4
Playback Memory Address PTR1 Registers
read/write
22h/A2h-24h/A4h
MR25/A5-27/A7
Playback Memory Address PTR2 Registers
read/write
25h/A5h-27h/A7h
MR28/A8
Playback Memory Line Fetch Width Register
read/write
28h/A8h
MR2A/AA
Playback Window X-LEFT Low Register
read/write
2Ah/AAh
MR2B/AB
Playback Window X-LEFT High Register
read/write
2Bh/ABh
MR2C/AC
Playback Window X-RIGHT Low Register
read/write
2Ch/ACh
MR2D/AD
Playback Window X-RIGHT High Register
read/write
2Dh/ADh
MR2E/AE
Playback Window Y-TOP Low Register
read/write
2Eh/AEh
MR2F/AF
Playback Window Y-TOP High Register
read/write
2Fh/AFh
MR30/B0
Playback Window Y-BOTTOM Low Register
read/write
30h/B0h
MR31/B1
Playback Window Y-BOTTOM High Register
read/write
31h/B1h
MR32/B2
H-ZOOM Register
read/write
32h/B2h
MR33/B3
V-ZOOM Register
read/write
33h/B3h
MR34/B4
Memory Line Out Total Register
read/write
34h/B4h
MR3C/BC
Color Key Control Register
read/write
3Ch/BCh
MR3D/BD-3F/BF
Color Keys Registers
read/write
3Dh/BDh-3Fh/BFh
MR40/C0-42/C2
Color Key Masks Registers
read/write
40h/C0h-42h/C2h
MR43/C3
Display Scanline Count Low Register (shadowed)
read-only
43h/C3h
MR44/C4
Display Line Count Low Register (shadow)
read-only
44h/C4h