MTV212AS32 View Datasheet(PDF) - Myson Century Inc

Part Name

Description

Manufacturer

MTV212AS32

8051 Embedded Monitor Controller Mask ROM Type

Myson Century Inc 

MYSON

TECHNOLOGY

MTV212A32

(Rev. 1.2)

VCNTL

HVCTR0

HVCTR2

HVCTR3

INTFLG

INTEN

44h (r)

40h (w)

42h (w)

43h (w)

48h (r/w)

49h (w)

VF7

VF6

C1

C0

CLPEG

HPRchg VPRchg

EHPR EVPR

VF5

NoHins

Selft

CLPPO

HPLchg

EHPL

VF4

STF1

CLPW2

VPLchg

EVPL

VF3

STF0

CLPW1

HFchg

EHF

VF2

Rt1

CLPW0

VFchg

EVF

VF1

HBpl

Rt0

VF0

VBpl

STE

Vsync

EVsync

HVSTUS (r) : The status of polarity, present and static level for HSYNC and VSYNC.

CVpre = 1 → The extracted CVSYNC is present.

= 0 → The extracted CVSYNC is not present.

Hpol = 1 → HSYNC input is positive polarity.

= 0 → HSYNC input is negative polarity.

Vpol = 1 → VSYNC (CVSYNC) is positive polarity.

= 0 → VSYNC (CVSYNC) is negative polarity.

Hpre = 1 → HSYNC input is present.

= 0 → HSYNC input is not present.

Vpre = 1 → VSYNC input is present.

= 0 → VSYNC input is not present.

Hoff* = 1 → HSYNC input's off level is high.

= 0 → HSYNC input's off level is low.

Voff* = 1 → VSYNC input's off level is high.

= 0 → VSYNC input's off level is low.

*Hoff and Voff are valid when Hpre=0 or Vpre=0.

HCNTH (r) : H-Freq counter's high bits.

Hovf = 1 → H-Freq counter is overflow, this bit is clear by H/W when condition removed.

HF13 - HF8 : 6 high bits of H-Freq counter.

HCNTL (r) : H-Freq counter's low byte.

VCNTH (r) : V-Freq counter's high bits.

Vovf = 1 → V-Freq counter is overflow, this bit is clear by H/W when condition removed.

VF11 - 8 :

4 high bits of V-Freq counter.

VCNTL (r) : V-Freq counter's low byte.

HVCTR0 (w) : H/V SYNC processor control register 0.

C1, C0 = 1,1 → Select CVSYNC as the polarity, freq and VBLANK source.

= 1,0 → Select VSYNC as the polarity, freq and VBLANK source.

= 0,0 → Disable composite function.

= 0,1 → H/W auto switch to CVSYNC when CVpre=1 and VSpre=0.

NoHins = 1 → HBLANK has no insert pulse in composite mode.

= 0 → HBLANK has insert pulse in composite mode.

HBpl = 1 → negative polarity HBLANK output.

= 0 → positive polarity HBLANK output.

VBpl = 1 → negative polarity VBLANK output.

= 0 → positive polarity VBLANK output.

HVCTR2 (w) : Self-test pattern generator control.

Selft = 1 → enable generator.

= 0 → disable generator.

STF1,STF0 = 1,1 → 95.2KHz(horizontal)/72Hz(vertical) output selected.

Revision 1.2

- 13 -

2000/07/04

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