Software Reset and Test Control:

SRTSTCTRL (0x843F)

Res’d

Reserved

Reset

X

AID

XXXXX

SRST

Bit 0

When this bit is a 1, all registers except this one are loaded with their default values. All operations are aborted,

except data transfers in progress on the I

Bits 5–1

Reserved and should be set to zero.

Bit 6

This bit disables the register Auto-Increment feature of the I

Auto-Increment is disabled and when a 0, AI is enabled.

Bit 7

Reserved and should be set to zero.

Attribute Table and Enhanced Features

Each display character and SL in the Display Page RAM will have a 4-bit Attribute Table entry associated with it. The user should

note that two-color display characters and four-color display characters use two different Attribute Tables, effectively providing 16

attributes for two-color display characters and 16 attributes for four-color display characters.

For two-color characters, the attribute contains the code for the 9-bit foreground color (Color 1), the code for the 9-bit background

color (Color 0), and the character’s enhanced features (Button Box, Blinking, Heavy Box, Shadowing, Bordering, etc.).

For four-color characters, the attribute contains the code for the 9-bit Color 0, the code for the 9-bit Color 1, the code for the 9-bit

Color 2, the code for the 9-bit Color 3, and the character’s enhanced features (Button Box, Blinking, Heavy Box, Shadowing,

Bordering, etc.).

TWO COLOR ATTRIBUTE FORMAT

The address range for an attribute number, 0

≤ n ≤ 15, is provided in Table 26.

Reserved

Enhanced Feature

Color 1 -

XXXXXX

XXXX

EFB[3:0]

C1B[2:1]

Blue

Color 1 - Green

Color 1 - Red

Color 0 - Blue

Color 0 - Green

Color0-Red

C2B0

C1G[2:0]

C1R[2:0]

C0B[2:0]

C0G[2:0]

C0R[2:0]

Bits 8–0

These nine bits determine the background color (color1), which is displayed when the corresponding OSD pixel is a

0.

Bits 17–9

These nine bits determine the foreground color (color2), which is displayed when the corresponding OSD pixel is a

1.

Bits 21–18

These are the enhanced feature (EF) bits, which determine which feature is applied to the displayed character. The

features and their corresponding codes are shown in Table 25.

Bits 31–22

Reserved and should be set to zero.

TABLE 25. Enhanced Feature Descriptions

Bits 21–18

Feature Description

0000b

Normal Display

0001b

Blinking

0010b

Shadowing

0011b

Bordering

0100b

RESERVED

0101b

RESERVED

0110b

RESERVED

0111b

RESERVED

1000b

Raised Box

1001b

Blinking and Raised Box

1010b

Depressed Box

1011b

Blinking and Depressed Box

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