M37207M8-059SP datasheet(68/121 Pages) MITSUBISHI

68 / 121 page

MITSUBISHI MICROCOMPUTERS

M37207MF-XXXSP/FP, M37207M8-XXXSP

M37207EFSP/FP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER

and ON-SCREEN DISPLAY CONTROLLER

Wipe speed

The wipe speed is determined by the vertical synchronization (VSYNC)

signal. For the NTSC interlace method, assuming that

VSYNC = 16.7 ms,

262.5 HSYNC signals (per field)

we obtain the wipe speed as shown in Table 14.

Wipe resolution varies with each wipe mode. In mode 1 and mode 2,

one of 3 resolutions (1H, 2H, 4H) can be selected. In mode 3, wipe is

done in units of 4H only.

Table 14. Wipe Speed

(NTSC interlace method, H = 262.5)

Wipe Speed (entire screen)

16.7 (ms) !262.5

÷ 1

4 (s)

16.7 (ms) !262.5

÷ 2

2 (s)

16.7 (ms) ! 262.5

÷ 4

1 (s)

Table 15. Wipe Mode and Wipe Resolution

Wipe Resolution

1H Unit

2H Unit

4H Unit

Wipe Resolution

1H Unit

2H Unit

4H Unit

Wipe Speed

about 4 (s)

about 2 (s)

about 1 (s)

Mode

Mode 1

Mode 2

Mode 3

Fig. 63. Structure of Wipe Mode Register

b7 b6 b5 b4 b3 b2 b1 b0

Wipe mode register (SL) [Address 00ED 16]

Name

Functions

After reset

R W

Wipe Mode Register

0, 1 Wipe mode selection bits

(SL0, SL1)

b1 b0

0 0 : Wipe is not available

0 1 : Mode 1

1 0 : Mode 2

1 1 : Mode 3

Direction mode selection

bits (SL2)

Nothing is assigned. This bit is a write disable bit.

When this bit is read out, the value is indeterminate.

R—

3, 4 Wipe unit selection bits

(SL3, SL4)

0: DOWN mode

1: UP mode

b4 b3

0 0 : 1H unit

0 1 : 2H unit

1 0 : 3H unit

1 1 : Do not set

5, 6 Stop mode selection bits

(SL5, SL6)

b6 b5

0 0 : Stop at the 312nd H

0 1 : Stop at the 156th H

1 0 : Stop at the 256th H

1 1 : Stop at the 128th H

M37207M8-059SP Datasheet(PDF) 68 Page - Mitsubishi Electric Semiconductor

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