M37280MF Datasheet, PDF (168/178 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

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MITSUBISHI MICROCOMPUTERS
M37280MF–XXXSP, M37280MK–XXXSP
M37280EKSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
Address 021E16
Top Border Control Register 2
b7 b6 b5 b4 b3 b2 b1 b0
Top border control register 2 (TB2) [Address 021E16]
B
Name
Functions
After reset R _W
0, 1 _{Control bits of}
top border
(TB20 ,TB21)
Top border position (high-order 2 bits)
Indeterminate R W
TH !
(setting value of low-order 2 bits of TB2 ! 16²
+ setting value of high-order 4 bits of TB1 ! 16¹
+ setting value of low-order 4 bits of TB1 ! 16⁰)
2
to
Nothing is assigned. These bits are write disable bits.
Indeterminate R —
When these bits are read out, the values are indeterminate.
7
Notes 1: Do not set “0016” or “0116” to the TB1 at TB2 = “0016.”
2: TH is cycle of HSYNC.
3: TB1 is top border control register 1.
Address 021F16
Bottom Border Control Register 2
b7 b6 b5 b4 b3 b2 b1 b0
Bottom border control register 2 (BB2) [Address 021F16]
B
Name
0, 1 _{Control bits of}
bottom border
(BB20, BB21)
Functions
After reset R _W
Bottom border position (high-order 2 bits)
Indeterminate R W
TH !
(setting value of low-order 2 bits of BB2 ! 16²
+ setting value of high-order 4 bits of BB1 ! 16¹
+ setting value of low-order 4 bits of BB1 ! 16⁰)
2
to
7
Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are indeterminate.
Indeterminate
R—
Notes 1: Set values fit for the following condition:
(TB1 + TB2 ! 16²) < (BB1 + BB2 ! 16²).
2: TH is cycle of HSYNC.
3: BB1 is bottom border control reigster 1.
Rev. 1.0
168