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參數(shù)資料
| 型號(hào)： | MTV012E |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8051 Embedded CRT Monitor Controller OTP Version |
| 中文描述： | CRT顯示器8051嵌入式控制器OTP版 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大小： | 104K |
| 代理商： | MTV012E |
MYSON
TECHNOLOGY
MTV012E
MTV012E Revision 1.2 12/23/1998
8/14
= 0
= 1
= 0
= 1
= 0
= 1
= 0
= 1
= 0
= 1
= 0
→
HSYNC input is negative polarity.
→
VSYNC (CVSYNC) is positive polarity.
→
VSYNC (CVSYNC) is negative polarity.
→
HSYNC input is present.
→
HSYNC input is not present.
→
VSYNC input is present.
→
VSYNC input is not present.
→
HSYNC input's off-level is high.
→
HSYNC input's off-level is low.
→
VSYNC input's off-level is high.
→
VSYNC input's off-level is low.
*Hoff and Voff are valid when Hpre=0 or Vpre=0.
Vpol
Hpre
Vpre
Hoff*
Voff*
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) :
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.
Vovf
VF8 :
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.
= 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.
Selft
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