ARM AMBA NIC-301 Specifikace stáhnout pdf (Strana 172)

HDLCD controller

ID062813 Non-Confidential

Attributes See Table B-1 on page B-3.

Figure B-20 shows the bit assignments.

Figure B-20 Command Register bit assignments

Table B-21 shows the bit assignments.

Pixel Format Register

The PIXEL_FORMAT Register characteristics are:

Purpose BYTES_PER_PIXEL plus one bytes are extracted from the internal

buffer. The extracted bytes are used to form a 32-bit value. The individual

bytes are then optionally reordered if BIG_ENDIAN is set before the color

components are extracted.

Usage constraints There are no usage constraints.

Configurations Available in all HDLCD controller configurations.

Attributes See Table B-1 on page B-3.

Figure B-21 shows the little endian byte layout.

Figure B-21 Little endian byte layout

Figure B-22 on page B-19 shows the big endian byte layout.

31 10

ENABLE

Reserved

Table B-21 Command Register bit assignments

Bits Name Function

[31:1] - Reserved, write as zero, read undefined

[0] ENABLE Enable the LCD controller

3 2 1 0

Undefined 2 1 0

Undefined 1 0

Undefined 0

31 24 23 16 15 8 7 0

1 2 ... 167 168 169 170 171 172 173 174 175 176 177 178

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ARM AMBA NIC-301 Specifikace Strana 172