ST92195D datasheet(138/249 Pages) STMICROELECTRONICS

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ST92195C/D - 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

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ST92195D 数据表(PDF) 138 Page - STMicroelectronics

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