M69030 Asiliant Technologies, M69030 Datasheet - Page 278

• 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

15-40
FR49-4C
read/write at I/O address 3D1h with index at I/O address 3D0h set to 49h-4Ch
shadowed only for pipeline A
7-0
FR4D
read/write at I/O address 3D1h with index at I/O address 3D0h set to 4Dh
This register is used in FP mode (FR01 bit 1 set to 1) and when vertical line replication is enabled. The 4
bit number specifies the number of lines between replicated lines. Double scanned lines are counted. The
state machine starts stretching by using the lower nibble value. If the stretched display does not fit it uses
the next higher value. The process continues until the count is equal to upper nibble value or the display
fits. The lower nibble value must be less than or equal to upper nibble value. Set this register before FR40.
7-4
3-0
`efmp
A
B
A
B

Replication Specifications
FP Vertical Line Replication Height High (VLRHH)
FP Vertical Line Replication Height Low (VLRHL)
69030 Databook
7
7
Vertical Line Replication Register
Font lines beyond 16 are not replicated.
This register specifies the new text mode vertical stretching (along with FR4A, FR4B,
FR4C). FR49(MSB), FR4A(LSB) and FR4B (MSB), FR4C(LSB) constitute two 16 bit
registers. Each of the 16 pairs of bits specify scan line replication as shown above.
FR49: Text Mode Vertical Stretching 0 MSB
FR4A: Text Mode Vertical Stretching 0 LSB
FR4B: Text Mode Vertical Stretching 1 MSB
FR4C: Text Mode Vertical Stretching 1 LSB
Text Mode Vertical Stretching Register
6
6
VLRHH
Bits
0 0
0 1
1 0
1 1
7 0
5
5
No replication
Replicate once
Replicate twice
Replicate three times
not shadowed for this pipeline
not shadowed for this pipeline
Flat Panel Registers
Replication Specification
Replication Specifications
4
4
3
3
2
2
VLRHL
Revision 1.3 11/24/99
1
1
0
0