ST92185B STMicroelectronics, ST92185B Datasheet - Page 134

• Manufacturer Part Number: ST92185B
• Description: 16k/24k/32k Rom Hcmos Mcu With On-screen-display
• Manufacturer: STMicroelectronics

ST92185B - ON SCREEN DISPLAY (OSD)
time_stab2:
;=======================================================================
Initialization of the OSD in Serial Mode
;=======================================================================
;
;=======================================================================
INIT::
;-----------Display Position & Black Reference
;-----------------
;------- Scrolling INIT ----------
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INIT DISPLAY ROUTINE
ld SKCCR, #0x89; enable the freq. multiplier
srp #BK20
ldw rr0,#0x0FFF;
decw rr0; SKEW clock stabilization
cpw rr0,#0x00 ;
jxnz time_stab2;
ld PXCCR,#0x80;(PXCCR)
spp #TDSR_PG2; page 26h, TDSRAM Controller registers third page
srp #000h
ld CONFIG, #003h; FC, ram Interface Configuration register
spp #DMP1_PG; page 020h Display memory map registers page
ld HBLANKR,#0x45; HBLANKR register [7: 0]; reset=03
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
ld FSCCR, #0x01
ld HSCR, #03Fh; bit5,
ld NC, #010h; SWE, NCM, NC[3:0]
spp #DMP1_PG; page 020h Display memory map registers page
; dot_freq= 4Mhz(4+1)=20Mhz (4/3)
; dot_freq= 4Mhz(5+1)=24Mhz (16/9)
; divide by 2
; for frequency multiplier stabilization
; enable display and Dram access
; important delay for black reference on RGB cathod
; F3, Full Screen Color register
; BE, Box enable
; TIO, Text in/out
; MM, Mixed Mode
; FSC[3:0]=half blue full screen
; ES1 , NS1, ES0, NS0, EH, NH
; 0x3F > set header and status in level 1+
;
; 0x2a > set header and status in level 1
; F5, National Characters register
(parallel)
; no subtitle mode
start Pixel Line PLL
4,
3,
2,
1,
0