M37281EKSP Datasheet, PDF (161/172 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

M37281MAH–XXXSP,M37281MFH–XXXSP,M37281MKH–XXXSP, M37281EKSP
Address 021C16
Top Border Control Register 1
b7 b6 b5 b4 b3 b2 b1 b0
Top border control register 1 (TB1) [Address 021C 16]
B
Name
0 _{Control bits of}
to _{top border}
7 _{(TB10 to TB17)}
Functions
After reset R W
Top border position (low-order 8 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)
Notes 1: Do not set “0016” or “0116” to the TB1 at TB2 = “00 16.”
2: TH is cycle of HSYNC.
3: TB2 is top border control register 2.
Address 021D16
Bottom Border Control Register 1
b7 b6 b5 b4 b3 b2 b1 b0
Bottom border control register 1 (BB1) [Address 021D16]
B
Name
0 _{Control bits of}
to _{bottom border}
7 _{(BB10 to BB17)}
Functions
After reset R W
Bottom border position (low-order 8 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)
Notes 1: Set values fit for the following condition:
(TB1 + TB2 ✕ 16²) < (BB1 + BB2 ✕ 16²).
2: TH is cycle of HSYNC.
3: BB2 is bottom border control reigster 2.
Rev.1.01 2003.07.16 page 161 of 170