HARDWARE ManualVDP2 User's Manual
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VDP2 User's Manual

Chapter 16 Quick Reference


180000H TVMD TV screen mode (readable)
180002H EXREN External signal enabled (readable)
180004H TVSTAT screen status (read only)
180006H VRSIZE VRAM size (version number is read only)
180008H HCNT H counter (read only)
18000AH VCNT V counter (read only)
18000CH Reserve
18000EH RAMCTL RAM control 180010H CYCA0L VRAM cycle pattern (bank A0)
180012H CYCA0U VRAM cycle pattern (bank A0)
180014H CYCA1L VRAM cycle pattern (bank A1)
180016H CYCA1U VRAM cycle pattern (bank A1)
180018H CYCB0L VRAM cycle pattern (bank B0)
18001AH CYCB0U VRAM cycle pattern (bank B0)
18001CH CYCB1L VRAM cycle pattern (bank B1)
18001EH CYCB1U VRAM cycle pattern (bank B1)
180020H BGON Screen display enable 180022H MZCTL Mosaic control 180024H SFSEL Special function code select 180026H SFCODE Special function code 180028H CHCTLA Character control (NBG0, NBG1)
18002AH CHCTLB Character Control (NBG2, NBG2, RBG0)
18002CH BMPNA Bitmap palette number (NBG0, NBG1)
18002EH BMPNB Bitmap Palette Number (RBG0)
180030H PNCN0 pattern name control (NBG0)
180032H PNCN1 pattern name control (NBG1)
180034H PNCN2 pattern name control (NBG2)
180036H PNCN3 pattern name control (NBG3)
180038H PNCR pattern name control (RBG0)
18003AH PLSZ Plain size 18003CH MPOFN Map offset (NBG0 to NBG3)
18003EH MPOFR Map offset (rotation parameters A, B)
180040H MPABN0 map (NBG0, planes A, B)
180042H MPCDN0 map (NBG0, planes C, D)
180044H MPABN1 map (NBG1, planes A, B)
180046H MPCDN1 map (NBG1, planes C, D)
180048H MPABN2 map (NBG2, planes A, B)
18004AH MPCDN2 map (NBG2, planes C, D)
18004CH MPABN3 map (NBG3, planes A, B)
18004EH MPCDN3 map (NBG3, planes C, D)
180050H MPABRA map (rotation parameters A, planes A, B)
180052H MPCDRA map (rotation parameters A, planes C, D)
180054H MPEFRA map (rotation parameters A, planes E, F)
180056H MPGHRA map (rotation parameters A, planes G, H)
180058H MPIJRA map (rotation parameter A, plane I, J)
18005AH MPKLRA map (rotation parameters A, planes K, L)
18005CH MPAMNA map (rotation parameter A, plane M, N)
18005EH MPOPRA map (rotation parameter A, plane O, P)
180060H MPABRB map (rotation parameter B, planes A, B)
180062H MPCDRB map (rotation parameters B, planes C, D)
180064H MPEFRB map (rotation parameter B, plane E, F)
180066H MPGHRB map (rotation parameter B, plane G, H)
180068H MPIJRB map (rotation parameter B, plane I, J)
18006AH MPKLRB map (rotation parameter B, plane K, L)
18006CH MPAMNB map (rotation parameter B, plane M, N)
18006EH MPOPRB map (rotation parameter B, plane O, P)
180070H SCXIN0 Screen scroll value (NBG0, horizontal integer part)
180072H SCXDN0 Screen scroll value (NBG0, horizontal decimal part)
180074H SCYIN0 Screen scroll value (NBG0, vertical integer part)
180076H SCYDN0 Screen scroll value (NBG0, vertical decimal part)
180078H ZMXIN0 Coordinate increment (NBG0, horizontal integer part)
18007AH ZMXDN0 Coordinate increment (NBG0, horizontal decimal part)
18007CH ZMYIN0 Coordinate increment (NBG0, vertical integer part)
18007EH ZMYDN0 Coordinate increment (NBG0, vertical decimal part)
180080H SCXIN1 Screen scroll value (NBG1, horizontal integer part)
180082H SCXDN1 Screen scroll value (NBG1, horizontal decimal part)
180084H SCYIN1 Screen scroll value (NBG1, vertical integer part)
180086H SCYDN1 Screen scroll value (NBG1, vertical decimal part)
180088H ZMXIN1 coordinate increment (NBG1, horizontal integer part)
18008AH ZMXDN1 Coordinate increment (NBG1, horizontal decimal part)
18008CH ZMYIN1 Coordinate increment (NBG1, vertical integer part)
18008EH ZMYDN1 Coordinate increment (NBG1, vertical decimal part)
180090H SCXN2 Screen scroll value (NBG2, horizontal direction)
180092H SCYN2 Screen scroll value (NBG2, vertical direction)
180094H SCXN3 Screen scroll value (NBG3, horizontal direction)
180096H SCYN3 Screen scroll value (NBG3, vertical direction)
180098H ZMCTL Reduction enable 18909AH SCRCTL Line & vertical cell scroll control 18909CH VCSTAU Vertical cell scroll table address (NBG0, NBG1)
18009EH VCSTAL Vertical cell scroll table address (NBG0, NBG1)
1800A0H LSTA0U Line scroll table address (NBG0)
1800A2H LSTA0L Line scroll table address (NBG0)
1800A4H LSTA1U Line scroll table address (NBG1)
1800A6H LSTA1L Line scroll table address (NBG1)
1800A8H LCTAU line color screen table address ・ upper 1800AAH LSTAL line color screen table address ・ lower 1800ACH BKTAU back screen table address ・ upper 1800AEH BKTAL back screen table address ・ lower 1800B0H RPMD rotation parameter mode 1800B2H RPRCTL rotation parameter read control 1800B4H KTCTL coefficient table control 1800B6H KTAOF coefficient table address offset (rotation parameters A, B)
1800B8H OVPNRA screen over pattern name 1800BAH OVPNRB screen over pattern name 1800BCH RPTAU rotation parameter table address (rotation parameters A, B)
1800BEH RPTAU Rotation parameter table address (Rotation parameters A, B)
1800C0H WPSX0 Window position (W0, horizontal start point)
1800C2H WPSY0 Window position (W0, vertical start point)
1800C4H WPEX0 Window position (W0, horizontal end point)
1800C6H WPEY0 Window position (W0, vertical end point)
1800C8H WPSX1 Window position (W1, horizontal start point)
1800CAH WPSY1 Window position (W1, vertical start point)
1800CCH WPEX1 window position (W1, horizontal end point)
1800CEH WPEY1 Window position (W1, vertical end point)
1800D0H WCTLA window control (NBG0, NBG1)
1800D2H WCTLB window control (NBG2, NBG3)
1800D4H WCTLC window control (RBG0, sprite)
1800D6H WCTLD window control (rotating window, color calculation window)
1800D8H LWTA0U Line window table address (W0)
1800DAH LWTA0L Line window table address (W0)
1800DCH LWTA1U Line window table address (W1)
1800DEH LWTA1L Line window table address (W1)
1800E0H SPCTL Sprite Control 1800E2H SDCTL Shadow Control 1800E4H CRAOFA Color RAM Address Offset (NBG0 to NBG3)
1800E6H CRAOFB color RAM address offset (RBG0, sprite 1800E8H LNCLEN line color screen enable 1800EAH SFPRMD special priority mode 1800ECH CCCTL color calculation control 1800EEH SFCCMD special color calculation mode 1800F0H PRISA priority number (sprite 0, 1)
1800F2H PRISB Priority Number (Sprites 2 and 3)
1800F4H PRISC Priority Number (Sprites 4, 5)
1800F6H PRISD Priority Number (Sprites 6 and 7)
1800F8H PRINA Priority number (NBG0, NBG1)
1800FAH PRINB priority number (NBG2, NBG3)
1800FCH PRIR Priority Number (RBG0)
1800FEH Reserve
180100H CCRSA Color calculation ratio (sprites 0, 1)
180102H CCRSB color calculation ratio (sprites 2 and 3)
180104H CCRSC color calculation ratio (sprites 4, 5)
180106H CCRSD color calculation ratio (sprites 6 and 7)
180108H CCRNA color calculation ratio (NBG0, NBG1)
18010AH CCRNB Color calculation ratio (NBG2, NBG3)
18010CH CCRR Color calculation ratio (RBG0)
18010EH CCRLB color calculation ratio (line color screen, back screen)
180110H CLOFEN Color Offset Enable 180112H CLOFSL Color Offset Select 180114H COAR Color Offset A (RED)
180116H COAG Color Offset A (GREEN)
180118H COAB Color Offset A (BLUE)
18011AH COBR Color Offset B (RED)
18011CH COBG Color Offset B (GREEN)
18011EH COBB Color Offset B (BLUE)

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HARDWARE ManualVDP2 User's Manual
Copyright SEGA ENTERPRISES, LTD., 1997