![](http://datasheet.mmic.net.cn/390000/TVP3010-110_datasheet_16839157/TVP3010-110_60.png)
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2.16.11 Auxiliary-Control Register
The auxiliary-control register is used to control various functions of the TVP3010 palette including the
auxiliary-windowing function and horizontal zooming. It can be accessed by the MPU at any time. Bit 7 of
the auxiliary-control register corresponds to data bus bit 7, index = 29 (hex).
BIT NAME
VALUES
DESCRIPTION
ACR7
0: (default)
Horizontal zoom control See Section 2 8
Horizontal zoom control. See Section 2.8.
1:
ACR6
0: (default)
Horizontal zoom control See Section 2 8
Horizontal zoom control. See Section 2.8.
1:
ACR5
0: (default)
Horizontal zoom control See Section 2 8
Horizontal zoom control. See Section 2.8.
1:
ACR4
X
Reserved
ACR3
0: Externally clocked
Frame-buffer clocking select. Used to select self- or externally-clocked
Frame buffer clocking select. Used to select self or externally clocked
timing for the pixel port (P0–P63). See Section 2.3.2.
1: Self clocked (default)
ACR2
0: PSEL disable (default)
Windowing-function select. This is a port-select enable. See equation
Windowing function select. This is a port select enable. See equation
in Section 2.6.1.
1: PSEL enable
ACR1
0: Window disable (default)
Windowing-function select. This is an auxiliary-window enable. See the
Windowing function select. This is an auxiliary window enable. See the
equation in Section 2.6.1.
1: Window enable
ACR0
0: True function
1: Complement (default)
Windowing-function select. This is a complementary function bit. See
the equation in Section 2.6.1.
2.16.12 Color-Key-Control Register
The color-key-control register is used to control the operation of the color-key-switching function (see
Section 2.6.2). It can be accessed by the MPU at any time. Bit 7 of the color-key-control register corresponds
to data bus bit 7, index = 38 (hex).
BIT NAME
VALUES
DESCRIPTION
CKC7
X
Reserved
CKC6
X
Reserved
CKC5
X
Reserved
CKC4
0: True function
Color-key-function select. This is a complementary function bit. See the
Color key function select. This is a complementary function bit. See the
equation in Section 2.6.2.
1: Complement (default)
CKC3
0: Disable compare
(default)
Blue-compare enable. This is used to enable or disable the direct-color blue
field comparison See the equation in Section 2 6 2
field comparison. See the equation in Section 2.6.2.
1: Enable comparison
CKC2
0: Disable compare
(default)
Green-compare enable. This is used to enable or disable the direct-color
green field comparison See the equation in Section 2 6 2
green field comparison. See the equation in Section 2.6.2.
1: Enable comparison
CKC1
0: Disable compare
(default)
Red-compare enable. This is used to enable or disable the direct-color red
field comparison See the equation in Section 2 6 2
field comparison. See the equation in Section 2.6.2.
1: Enable comparison
CKC0
0: Disable compare
(default)
Overlay/VGA-compare enable. This is used to enable or disable the
direct-color overlay/VGA field comparison. See the equation in
Section 2.6.2.
1: Enable comparison