User`s manual

61
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
M37281MAH–XXXSP,M37281MFH–XXXSP
M37281MKH–XXXSP,M37281EKSP
Fig. 8.10.9 Caption Position Register
Field and Line to Generate Slice Voltage
• Field specified by bit 1 of DSC1
• Line 21 (total 1 line)
• Field specified by bit 1 of DSC1
• A line specified by bits 4 to 0 of CPS
(total 1 line) (See note 3)
• Field specified by bit 1 of DSC1
• Line 21 (total 1 line)
• Field specified by bit 1 of DSC1
• Line 21 and a line specified by bits 4 to 0 of CPS
(total 2 lines) (See note 2)
Field and Line to Be Sliced Data
• Both fields of F1 and F2
• Line 21 and a line specified by bits 4 to 0 of CPS
(total 2 lines) (See note 2)
• Both fields of F1 and F2
• A line specified by bits 4 to 0 of CPS
(total 1 line) (See note 3)
• Both fields of F1 and F2
• Line 21 (total 1 line)
• Both fields of F1 and F2
• Line 21 and a line specified by bits 4 to 0 of CPS
(total 2 lines) (See note 2)
CPS
b7
0
0
1
1
b6
0
1
0
1
Notes 1: DSC1 is data slicer control register 1.
CPS is caption position register.
2: Set “00
16” to “1016” to bits 4 to 0 of CPS.
3: Set “00
16” to “1F16” to bits 4 to 0 of CPS.
Table 8.10.1 Specification of Data Slice Line
b7 b6 b5 b4 b3 b2 b1 b0
Caption Position Register (CPS) [Address 00E6
16 ]
Caption Position Registe
r
0
to
4
0
R
W
0
R
W
Caption position
bits(CPS0 to CPS4)
6, 7 Refer to the corresponding
Table (Table 8.10.1).
Slice line mode
specification bits
(in 1 field) (CPS6, CPS7)
5 0: Data is not latched yet and a
clock-run-in is not determined.
1: Data is latched and a
clock-run-in is determined.
Caption data latch
completion flag 2
(CPS5)
Indeterminate
R
—
B After resetFunctionsNam
e
R
W