MTV021 Datasheet, PDF (12/17 Pages) List of Unclassifed Manufacturers – Enhanced Super On-Screen Display

MYSON
TECHNOLOGY
MTV021
= (1, 1) ⇒ 76MHz < Pixel rate < 96MHz
where Pixel rate = VCLK Freq = HFLB Freq * HORR * 12
The initial value is (0, 0) after power up.
Notes :
1. That is, if HORR is specified and RP resister = 12K ohm, then (VCO1, VCO0)
= (0, 0) if 6000/(HORR * 12) < HFLB Freq (KHz) < 12000/(HORR * 12)
= (0, 1) if 12000/(HORR * 12) < HFLB Freq (KHZ) < 24000/(HORR * 12)
= (1, 0) if 24000/(HORR * 12) < HFLB Freq (KHZ) < 48000/(HORR * 12)
= (1, 1) if 48000/(HORR * 12) < HFLB Freq (KHZ) < 96000/(HORR * 12)
2. It is necessary to wait for the PLL to become stable while (i) the HORR register is changed; (ii) the (VCO1, VCO0)
bits is changed; (iii) the horizontal signal (HFLB) is changed.
3. When PLL is unstable, don't write data in any address except Column 15,17,18 of Row 15. If data is written in any
other address, a malfunction may occur.
TABLE 5. PWMCK Frequency and PWMDA sampling rate
(VCO1, VCO0)
( 0, 0 )
( 0, 1 )
( 1, 0 )
( 1 ,1 )
PWMCK Freq (6M ~ 12MHz)
HFLB Freq * HORR * 12
HFLB Freq * HORR * 6
HFLB Freq * HORR * 3
HFLB Freq * HORR * 3 / 2
PWMDA sampling rate (23K ~ 47KHz)
HFLB Freq * HORR * 12 / 256
HFLB Freq * HORR * 6 / 256
HFLB Freq * HORR * 3 / 256
HFLB Freq * HORR * 3 / 512
B7
b6
b5
b4
b3
b2
b1
b0
Column 19
-
WSR WSG WSB
-
CSR CSG CSB
WSR, WSG, WSB - Define the color of shadowing on windows. The initial value is (0, 0, 0) after power up.
CSR, CSG, CSB - Define the color of bordering or shadowing on characters. The initial value is (0, 0, 0) after
power up.
B7
b6
b5
b4
b3
b2
b1
b0
Column 20
-
-
-
-
-
-
- CFONT
CFONT - Enable 16 multi-color fonts.
= 0 ⇒ Character address 240 to 255 are connected to standard ROM fonts.
= 1 ⇒ Character address 240 to 255 are connected to 16 multi-color ROM fonts.
The initial value is 0 after power up.
B7
b6
b5
b4
b3
b2
b1
b0
Column 21 _{WW41 WW40 WW31 WW30 WW21 WW20 WW11 WW10}
WW41, WW40 - Determines the shadow width of the window 4 when WSHD bit of th window 4 is enabled.
Please refer to the Table 6 for more details.
TABLE 6. Shadow Width Setting
(WW41, WW40)
Shadow Width
(unit in Pixel)
(0, 0)
2
(0, 1)
4
(1, 0)
6
(1, 1)
8
12/17
MTV021 Revision 5.0 6/29/1999