TABLE 12. Example 3 I

Data Sent

Description

RAM Address

0xBA

Chip address (See the Microcontroller Interface Section)

0x06

Address LSB

0x80

Address MSB

0x00

Use Attribute table 0x00 for the following character

0x03

Skip 3 lines Command

0x8006

0x01

Row-End (RE) Command

0x8007

I

I

0xBA

Chip address (See the Microcontroller Interface Section)

0x08

Address LSB

0x80

Address MSB

0x0A

Use Attribute table 0x0A for the following characters

0x00

Skip 0 lines Command

0x8008

0x05

Character “D”

0x8009

0x06

Character “E”

0x800A

0x07

Character “F”

0x800B

0x08

Character “G”

0x800C

0x09

Character “H”

0x800D

0x00

Window-End (WE) Command

0x800E

I

Control Register Definitions

OSD INTERFACE REGISTERS

Frame Control Register 1

Register Name (address): FRMCTRL1 (0x8400)

20023435

Bit 0

On-Screen Display Enable. The On-Screen Display will be disabled when this bit is a zero. When this bit is a

one the On-Screen Display will be enabled and Display Window 1 will be enabled if Bit 1 of this register is a

one; likewise Display Window 2 will be enabled if Bit 2 of this register is a one.

Bit 1

Display Window 1 Enable. When Bit 0 of this register and this bit are both ones, Display Window 1 is enabled.

If either bit is a zero, then Display Window 1 will be disabled.

Bit 2

Display Window 2 Enable. When Bit 0 of this register and this bit are both ones, Display Window 2 is enabled.

If either bit is a zero, then Display Window 2 will be disabled.

Bit 3

Clear Display Page RAM. Writing a one to this bit will result in setting all of the Display Page RAM values to

zero. This bit is automatically cleared after the operation is complete.

Bit 4

Transparent Disable. When this bit is a zero, a palette color of black (i.e., color palette look-up table value of

0x00) in the first 8 palette look-up table address locations (i.e., ATT0–ATT7) will be interpreted as transparent.

When this bit is a one, the color will be interpreted as black.

Bits 7–5

Reserved (Should be set to zero)

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