ARM AMBA NIC-301 Specifikace stáhnout pdf (Strana 169)

HDLCD controller

ID062813 Non-Confidential

Configurations Available in all HDLCD controller configurations.

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

Figure B-15 shows the bit assignments.

Figure B-15 Horizontal Synch Width Register bit assignments

Table B-16 shows the bit assignments.

Horizontal Back Porch Width Register

The H_BACK_PORCH Register characteristics are:

Purpose Holds the width of the interval between the horizontal sync and the first

visible column, counted in pixel clocks.

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-16 shows the bit assignments.

Figure B-16 Horizontal Back Porch Width Register bit assignments

Table B-17 shows the bit assignments.

Horizontal Data Width Register

The H_DATA Register characteristics are:

Purpose Holds the width of the horizontal data area, that is, the number of visible

columns counted in pixel clocks.

31 12 11 0

Reserved H_SYNC

Table B-16 Horizontal Synch Width Register bit assignments

Bits Name Function

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

[11:0] H_SYNC Horizontal synch width -1

31 12 11 0

Reserved H_BACK_PORCH

Table B-17 Horizontal Synch Width Register bit assignments

Bits Name Function

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

[11:0] H_BACK_PORCH Horizontal back porch width -1

1 2 ... 164 165 166 167 168 169 170 171 172 173 174 ... 177 178

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ARM AMBA NIC-301 Specifikace Strana 169