sed1355 ETC-unknow, sed1355 Datasheet - Page 115
sed1355
Manufacturer Part Number
sed1355
Description
Sed1355 Embedded Ramdac Lcd/crt Controller
Manufacturer
ETC-unknow
Datasheet
1.SED1355.pdf
(509 pages)
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REG[0Eh] bits 7-0
REG[0Fh] bits 1-0
REG[10h] bits 7-0
REG[11h] bits 7-0
REG[12h] bits 3-0
Hardware Functional Specification
Issue Date: 99/05/18
Screen 1 Line Compare Register 0
REG[0Eh]
Screen 1
Line
Compare Bit 7
Screen 1 Line Compare Register 1
REG[0Fh]
n/a
Screen 1 Display Start Address Register 0
REG[10h]
Start Address
Bit 7
Screen 1 Display Start Address Register 1
REG[11h]
Start Address
Bit 15
Screen 1 Display Start Address Register 2
REG[12h]
n/a
Screen 1
Line
Compare Bit 6
n/a
Start Address
Bit 6
Start Address
Bit 14
n/a
Screen 1 Line Compare Bits [9:0]
These bits are set to 1 during power-on.
The display can be split into two images: Screen 1 and Screen 2, with Screen 1 above Screen 2.
This 10-bit value specifies the height of Screen 1.
Height of Screen 1 (lines) = Screen 1 Line Compare Bits [9:0] + 1
If the height of Screen 1 is less than the display height then the remainder of the display is taken up
by Screen 2. For normal operation (no split screen) this register must be set greater than the Vertical
Display Height register (e.g. set to the reset value of 3FFh).
See “Display Configuration” for details.
Screen 1 Start Address Bits [19:0]
These registers form the 20-bit address for the starting word of the Screen 1 image in
the display buffer.
Note that this is a word address.
A combination of this register and the Pixel Panning register (REG[18h]) can be used to uniquely
identify the start (top left) pixel within the Screen 1 image stored in the display buffer.
See “Display Configuration” for details.
Screen 1
Line
Compare Bit 5
n/a
Start Address
Bit 5
Start Address
Bit 13
n/a
Screen 1
Line
Compare Bit 4
n/a
Start Address
Bit 4
Start Address
Bit 12
n/a
Screen 1
Line
Compare Bit 3
n/a
Start Address
Bit 3
Start Address
Bit 11
Start Address
Bit 19
Screen 1
Line
Compare Bit 2
n/a
Start Address
Bit 2
Start Address
Bit 10
Start Address
Bit 18
Start Address
Bit 17
Screen 1
Line
Compare Bit 1
Screen 1
Line
Compare Bit 9
Start Address
Bit 1
Start Address
Bit 9
Start Address
Bit 16
Screen 1
Line
Compare Bit 0
Screen 1
Line
Compare Bit 8
Start Address
Bit 0
Start Address
Bit 8
X23A-A-001-11
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