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M37151MA Datasheet(PDF) 67 Page - Renesas Technology Corp

Part # M37151MA
Description  SNGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PDF  138 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M37151MA Datasheet(HTML) 67 Page - Renesas Technology Corp

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M37151M6/M8/MA/MC/MF-XXXFP, M37151EFFP
Rev.1.00
Nov 01, 2002
page 67 of 136
REJ03B0129-0100Z
Fig. 8.11.7 Vertical Position Register i (i = 1 and 2)
b7 b6 b5 b4 b3 b2 b1 b0
0
to
7
R W
Vertical Position Register i
Vertical position register i (VPi) (i = 1 and 2) [Addresses 00D416, 00D516]
B
Name
Functions
After reset
RW
Inderterminate
Vertical display start
position control bits
(VPi0 to VPi7)
(See note)
Vertical display start position =
TH 5 (BCi6 ✕ 16
2 + n)
(n: setting value, TH: HSYNC cycle,
BCi6: bit 6 of block control register i)
Notes 1: Set values except “0016” to VPi when BCi6 is “0.”
2: When OS21 of OSD control register 2 = “0”, TH = 1HSYNC,
and OS21 of OSD control register 2 = “1”, TH = 2HSYNC.
The vertical display start position for each block can be set in 512
steps (where each step is 1TH (TH: HSYNC cycle)) as values “0016” to
“FF16” in vertical position register i (i = 1 and 2) (addresses 00D416
and 00D516) and values “0” or “1” in bit 6 of block control register i (i
= 1 and 2) (addresses 00D216 and 00D316). The vertical position
register is shown in Figure 8.11.7.
The vertical display start position of both blocks can be switched in
each step to 1TH or 2TH by setting values “0” or “1” in bit 1 of OSD
control register 2 (address 00DB16).



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