Hardware manual

3 Programmers Reference EUROCOM-17-5xx
58 Hardware Manual
Table32: Register of Bt445
Direct
Address
Indirect
Address
Name Description
$FEC4.0000 $XX BT_ADR Address Register
$FEC4.0001 $00-$FF BT_CLUT Primary Color Palette RAM
$FEC4.0002 $00 IDR ID Register
$01 RR Revision Register
$04 RER Read Enable Register
$05 BER Blink Enable Register
$06 CR0 Command Register 0
$07 TR0 Test Register 0
$08-$FF Reserved
$FEC4.0003 $00-$0F BT_OVLU Overlay Color Palette RAM
$10-$FF Reserved
$FEC4.0004 $XX Reserved
$FEC4.0005 $00 RMSBP Red MSB Position
$01 RWC Red Width Control
$02 RDEC Red Display Enable Control
$03 RBER Red Blink Enable Register
$04-$07 Reserved
$08 GMSBP Green MSB Position
$09 GWC Green Width Control
$0A GDEC Green Display Enable Control
$0B GBER Green Blink Enable Register
$0C-$0F Reserved
$10 BMSBP Blue MSB Position
$11 BWC Blue Width Control
$12 BDEC Blue Display Enable Control
$13 BBER Blue Blink Enable Register
$14-$17 Reserved
$18 OMSBP Overlay MSB Position
$19 OWC Overlay Width Control