MTV212AN32 View Datasheet(PDF) - Myson Century Inc

Part Name

Description

Manufacturer

MTV212AN32

8051 Embedded Monitor Controller Mask ROM Type

Myson Century Inc 

MYSON

TECHNOLOGY

MTV212A32

(Rev. 1.2)

Rt1, Rt0= 0,0

= 0,1

= 1,0

= 1,1

STE = 1

=0

= 1,0 → 63.5KHz(horizontal)/60Hz(vertical) output selected.

= 0,1 → 47.6KHz(horizontal) /60Hz(vertical) output selected.

= 0,0 → 31.75KHz(horizontal) /60Hz(vertical) output selected.

→ positive cross-hatch pattern output.

→ negative cross-hatch pattern output.

→ full white pattern output.

→ full black pattern output.

→ enable STOUT output.

→ disable STOUT output.

HVCTR3 (w) : HSYNC clamp pulse control register.

CLPEG = 1 → Clamp pulse follows HSYNC leading edge.

= 0 → Clamp pulse follows HSYNC trailing edge.

CLPPO = 1 → Positive polarity clamp pulse output.

= 0 → Negative polarity clamp pulse output.

CLPW2 : CLPW0 : Pulse width of clamp pulse is

[(CLPW2:CLPW0) + 1] x 0.167 µs for 12MHz X’tal selection.

INTFLG (w) : Interrupt flag. An interrupt event will set its individual flag, and, if the corresponding interrupt

enable bit is set, the 8051 core's INT1 source will be driven by a zero level. Software MUST

clear this register while serve the interrupt routine.

HPRchg= 1 → No action.

= 0 → Clear HSYNC presence change flag.

VPRchg= 1 → No action.

= 0 → Clear VSYNC presence change flag.

HPLchg= 1 → No action.

= 0 → Clear HSYNC polarity change flag.

VPLchg = 1 → No action.

= 0 → Clear VSYNC polarity change flag.

HFchg = 1 → No action.

= 0 → Clear HSYNC frequency change flag.

VFchg = 1 → No action.

= 0 → Clear VSYNC frequency change flag.

Vsync = 1 → No action.

= 0 → Clear VSYNC interrupt flag.

INTFLG (r) : Interrupt flag.

HPRchg= 1 → Indicates a HSYNC presence change.

VPRchg= 1 → Indicates a VSYNC presence change.

HPLchg= 1 → Indicates a HSYNC polarity change.

VPLchg = 1 → Indicates a VSYNC polarity change.

HFchg = 1 → Indicates a HSYNC frequency change or counter overflow.

VFchg = 1 → Indicates a VSYNC frequency change or counter overflow.

Vsync = 1 → Indicates a VSYNC interrupt.

INTEN (w) : Interrupt enable.

EHPR = 1 → Enable HSYNC presence change interrupt.

EVPR = 1 → Enable VSYNC presence change interrupt.

EHPL = 1 → Enable HSYNC polarity change interrupt.

EVPL = 1 → Enable VSYNC polarity change interrupt.

EHF = 1 → Enable HSYNC frequency change / counter overflow interrupt.

EVF = 1 → Enable VSYNC frequency change / counter overflow interrupt.

EVsync = 1 → Enable VSYNC interrupt.

Revision 1.2

- 14 -

2000/07/04

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