MITSUBISHI MICROCOMPUTERS
M37270MF-XXXSP
M37270EF-XXXSP, M37270EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
7
0
Window H register 1
(WH1 : address 021C16)
Control bits of window top boundary (Note)
Top boundary position (low-order 8bits)
TH✕(setting value of low-order 2bits of
WH2✕162 + settingvalue of high-order
4bits of WH1✕161 + setting value of
0
low-order 4bits of WH1✕16 )
7
0
Window H register 2
(WH2 : address 021E16)
Control bits of window top boundary (Note)
Top boundary position (high-order 2bits)
TH✕(setting value of low-order 2bits of
2
WH2✕16 + setting value of high-order
4bits of WH1✕161+ setting value of
low-order 4bits of WH1✕160)
Note : Set values except “0016” and “0116” to the WH1 when the WH2 is “0016.”
Fig. 78. Structure of window H registers
7
0
Window L register 1
(WL1 : address 021D16)
Control bits of window bottom boundary (Note)
Bottom boundary position (low-order 8bits)
TH✕(setting value of low-order 2bits of
WL2✕162 +setting value of high-order
4bits of WL1✕161+ setting value of
low-order 4bits of WL1✕160 )
7
0
Window L register 2
(WL2 : address 021F16)
Control bits of window bottom boundary (Note)
Bottom boundary position (high-order 2bits)
TH✕(setting value of low-order 2bits of
WL2 162+ setting value of high-order
✕
4bits of WL1✕161+ setting value of
low-order 4bits of WL1✕160 )
Note : Set values fit for the following condition : (WH1+WH2) < (WL1+ WL2) .
Fig. 79. Structure of window L registers
70
MITSUBISHI [ Mitsubishi Group ]
