ARM AMBA NIC-301 Dokumentacja Pobierz pdf (Strona 167)

HDLCD controller

ID062813 Non-Confidential

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

Figure B-11 shows the bit assignments.

Figure B-11 Vertical Synch Width Register bit assignments

Table B-12 shows the bit assignments.

Vertical Back Porch Width Register

The V_BACK_PORCH Register characteristics are:

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

visible line, 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-12 shows the bit assignments.

Figure B-12 Vertical Back Porch Width Register bit assignments

Table B-13 shows the bit assignments.

Vertical Data Width Register

The V_DATA Register characteristics are:

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

lines, counted in the number of horizontal scan lines.

Usage constraints There are no usage constraints.

31 12 11 0

Reserved V_SYNC

Table B-12 Vertical Synch Register bit assignments

Bits Name Function

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

[11:0] V_SYNC Vertical synch width -1

31 12 11 0

Reserved V_BACK_PORCH

Table B-13 Vertical Back Porch Register bit assignments

Bits Name Function

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

[11:0] V_BACK_PORCH Vertical back porch width -1

1 2 ... 162 163 164 165 166 167 168 169 170 171 172 ... 177 178

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ARM AMBA NIC-301 Dokumentacja Strona 167