MTV012E View Datasheet(PDF) - Myson Century Inc
Part Name
Description
Manufacturer
MTV012E Datasheet PDF : 14 Pages
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MYSON
TECHNOLOGY
MTV012E
= 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 overflows; this bit is cleared by H/W when condition
removed.
HF10 - HF8 : 3 high bits of H-Freq counter.
HCNTL (r) : H-Freq counter's low bits.
VCNTH (r) :
Vovf
VF8 :
V-Freq counter's high bits.
= 1 → V-Freq counter overflows; this bit is cleared by H/W when condition
removed.
High bit of V-Freq counter.
VCNTL (r) : V-Freq counter's low bits.
PCTR0 (w) : SYNC processor control register 0.
C1, C0 = 1,1 → Selects CVSYNC as the polarity, freq and VBLANK source.
= 1,0 → Selects VSYNC as the polarity, freq and VBLANK source.
= 0,0 → Disables composite function (MTV012 compatible mode).
= 0,1 → H/W auto switch to CVSYNC when CVpre=1 and VSpre=0.
HVsel = 1 → Pin #16 is P41, pin #17 is P40.
= 0 → Pin #16 is HBLANK, pin #17 is VBLANK.
STOsel = 1 → Pin #29 is P42.
= 0 → Pin #29 is STOUT.
PREFS = 0 → Selects 8MHz OSC as H/V present check and self-test pattern time base.
= 1 → Selects 12MHz OSC as H/V present check and self-test pattern time base.
HALFV = 1 → VBLANK is half frequency output of VSYNC.
HBpl = 1 → Negative polarity HBLANK output.
= 0 → Positive polarity HBLANK output.
VBpl = 1 → Negative polarity VBLANK output.
= 0 → Positive polarity VBLANK output.
PCTR2 (w) : Self-test pattern generator control.
Selft = 1 → Enables generator.
= 0 → Disables generator.
STbsh = 1 → 63.5KHz (horizontal) output selected.
= 0 → 31.75KHz (horizontal) output selected.
Rt1,Rt0 = 0,0 → Positive cross-hatch pattern output.
= 0,1 → Negative cross-hatch pattern output.
= 1,0 → Full white pattern output.
= 1,1 → Full black pattern output.
MTV012E Revision 1.2 12/23/1998
8/14
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