ARM AMBA NIC-301 Specifikace stáhnout pdf (Strana 168)

HDLCD controller

ID062813 Non-Confidential

Configurations Available in all HDLCD controller configurations.

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

Figure B-13 shows the bit assignments.

Figure B-13 Vertical Data Width Register bit assignments

Table B-14 shows the bit assignments.

Vertical Front Porch Width Register

The V_FRONT_PORCH Register characteristics are:

Purpose Holds the width of the interval between the last visible line and the next

vertical synchronization, counted in number of horizontal scan lines.

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-14 shows the bit assignments.

Figure B-14 Vertical Front Porch Width Register bit assignments

Table B-15 shows the bit assignments.

Horizontal Synch Width Register

The H_SYNCH Register characteristics are:

Purpose Holds the width of the horizontal synch signal, counted in pixel clocks.

Usage constraints There are no usage constraints.

31 12 11 0

Reserved V_DATA

Table B-14 Vertical Data Width Register bit assignments

Bits Name Function

[31:12] - Reserved, write as zero, read undefined

[11:0] V_DATA Vertical data width -1

31 12 11 0

Reserved V_FRONT_PORCH

Table B-15 Vertical Front Porch Width Register bit assignments

Bits Name Function

[31:12] - Reserved, write as zero, read undefined

[11:0] V_FRONT_PORCH Vertical front porch width -1

1 2 ... 163 164 165 166 167 168 169 170 171 172 173 ... 177 178

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ARM AMBA NIC-301 Specifikace Strana 168