M37274EFSP datasheet(97/148 Pages) RENESAS

97 / 148 page

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER

and ON-SCREEN DISPLAY CONTROLLER

M37274EFSP

PRELIMINARY

Notice:

This

is not

a final

specification.

Some

paramentic

limits

are

subject

to change.

MITSUBISHI MICROCOMPUTERS

Fig. 97. Window H Register 2

Fig. 96. Window H Register 1

b7 b6 b5 b4 b3 b2 b1 b0

Window H register 1 (WH1) [Address 021C16]

Name

Functions

After reset

R W

Window H Register 1

Control bits of window

top boundary

(WN10 to WN17)

(See note 1)

Top boundary position (low-order 8 bits)

TH !

(setting value of low-order 2 bits of WH2 ! 162

+ setting value of high-order 4 bits of WH1 ! 161

+ setting value of low-order 4 bits of WH1 ! 160)

Indeterminate RW

Notes 1: Set values except “00 16” to the WH1 when WH2 is “00 16.”

2: TH is cycle of HSYNC.

3: WH2: Window H register 2

b7 b6 b5 b4 b3 b2 b1 b0

Window H register 2 (WH2) [Address 021E16]

Name

Functions

After reset

R W

Window H Register 2

0, 1 Control bits of window

top boundary

(WN20 ,WN21)

(See note 1)

Top boundary position (high-order 2 bits)

TH !

(setting value of low-order 2 bits of WH2 ! 162

+ setting value of high-order 4 bits of WH1 ! 161

+ setting value of low-order 4 bits of WH1 ! 160)

Indeterminate RW

Notes 1: Set values except “00 16” to the WH1 when WH2 is “00 16.”

2: TH is cycle of HSYNC.

3: WH1: Window H register 1

Nothing is assigned. These bits are write disable bits.

When these bits are read out, the values are indeterminate.

Indeterminate R—

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