M69030 Asiliant Technologies, M69030 Datasheet - Page 299

• Manufacturer Part Number: M69030
• Manufacturer: Asiliant Technologies

Specifications of M69030

• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 70C
• Rad Hardened: No
• Lead Free Status / Rohs Status: Supplier Unconfirmed

MR20/A0
read/write at I/O address 3D3h with index at address 3D2h set to 20h/A0h
shared & shadowed for each playback engine at MR20, and cross-shared for the other at MRA0
7
6
5
4
3
2
1-0
`efmp
PB
PB
1
2
Vert. Autoctr
Vert. Autoctr
Playback
Playback

Enable
Enable
Playback Vertical Auto-Centering Enable
Playback Width Source
Playback Pointer Select 1
CPU Double Buffer Flag
Playback Pointer Select 2
Double Buffer Trigger
Reserved
69030 Databook
7
0: Allow software to employ a delay to properly center the playback window vertically. This
is done usually via bit 4 of the Pixel Pipeline Configuration Register 1 (XR81).
1: Activate a hardware-based auto-centering mechanism.
0: Uses MR28 for Playback width
1: Uses MR34 for Playback width
0: The pointer to the location in the frame buffer from which frames/fields of video data are
played back is selected by bit 4 of this register.
1: The pointer to the location in the frame buffer from which frames/fields of video data are
played back is controlled by bit 3 of this register.
0: Playback memory address PTR1
1: Playback memory address PTR2
0: The pointer to the location in the frame buffer from which frames/fields of video data are
played back is selected by bit 4 of this register.
1: The pointer to the location in the frame buffer from which frames/fields of video data are
played back toggles between the addresses indicated by PTR1 and PTR2 after each frame/
field captured.
0: Retains old PTR.
1: Takes new PTR on next VSYNC if bit 5 is set to 1.
0
0
5
1
1
1
1
Playback
Playback
Source
Source
Playback Control 3 Register
Width
Width
Bit
0
1
4
0
0
1
1
6
3
X
X
0
1
0
1
Selects playback memory pointer address 1
Selects playback memory pointer address 2
Selects playback memory pointer address 1
Pointer to the location from which frames/fields of data are read toggles between
addresses indicated by PTR1and PTR2 after each frame/field captured
Selects playback memory pointer address 2
Pointer to the location from which frames/fields of data are read toggles between
addresses indicated by PTR1and PTR2 after each frame/field captured
Playback
Playback
Pointer
Pointer
Select
Select
5
Multimedia Registers
CPU Double
CPU Double
Buffer Flag
Buffer Flag
4
Playback Pointer Select
Playback
Playback
Select 2
Select 2
Pointer
Pointer
3
Double
Trigger
Double
Trigger
Buffer
Buffer
2
Revision 1.3 11/24/99
1
Reserved
Reserved
0
16-17