ST92185B datasheet(134/178 Pages) STMICROELECTRONICS

134 / 178 page

134/178

ST92185B - ON SCREEN DISPLAY (OSD)

; dot_freq= 4Mhz(4+1)=20Mhz (4/3)

; dot_freq= 4Mhz(5+1)=24Mhz (16/9)

; divide by 2

ld SKCCR, #0x89; enable the freq. multiplier

srp #BK20

ldw rr0,#0x0FFF;

time_stab2:

; for frequency multiplier stabilization

decw rr0; SKEW clock stabilization

cpw rr0,#0x00 ;

jxnz time_stab2;

ld PXCCR,#0x80;(PXCCR)

start Pixel Line PLL

spp #TDSR_PG2; page 26h, TDSRAM Controller registers third page

srp #000h

ld CONFIG, #003h; FC, ram Interface Configuration register

; enable display and Dram access

;=======================================================================

Initialization of the OSD in Serial Mode

;=======================================================================

;

INIT DISPLAY ROUTINE

;=======================================================================

INIT::

;-----------Display Position & Black Reference

spp #DMP1_PG; page 020h Display memory map registers page

ld HBLANKR,#0x45; HBLANKR register [7: 0]; reset=03

; important delay for black reference on RGB cathod

ld HPOSR,#0x35; HPOSR register [7:0]; reset=03

ld VPOSR,#0x10; VPOSR register [5:0]; reset=00

;-----------------

spp #DMP1_PG; page 020h Display memory map registers page

; F3, Full Screen Color register

ld FSCCR, #0x01

; no subtitle mode

; BE, Box enable

; TIO, Text in/out

; MM, Mixed Mode

; FSC[3:0]=half blue full screen

ld HSCR, #03Fh; bit5,

; ES1 , NS1, ES0, NS0, EH, NH

; 0x3F > set header and status in level 1+

;

(parallel)

; 0x2a > set header and status in level 1

; F5, National Characters register

ld NC, #010h; SWE, NCM, NC[3:0]

;------- Scrolling INIT ----------

spp #DMP1_PG; page 020h Display memory map registers page

ST92185B Datasheet(PDF) 134 Page - STMicroelectronics

ST92185B Datasheet(HTML) 134 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL