ALXD800EEXJ2VD C3 AMD (ADVANCED MICRO DEVICES), ALXD800EEXJ2VD C3 Datasheet - Page 558
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ALXD800EEXJ2VD C3
Manufacturer Part Number
ALXD800EEXJ2VD C3
Description
Manufacturer
AMD (ADVANCED MICRO DEVICES)
Datasheet
1.ALXD800EEXJ2VD_C3.pdf
(680 pages)
Specifications of ALXD800EEXJ2VD C3
Operating Temperature (min)
0C
Operating Temperature (max)
85C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
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558
63:49
46:44
43:36
35:32
31:26
23:16
12:10
9:1
Bit
48
47
25
24
15
14
13
0
Name
RSVD
DIV4
RSVD
MDIV
NDIV
PDIV
SWFLAGS
LOCK (RO)
HALFPIX
RSVD
BYPASS
PD
CAPEN
RSVD
RSVD
DOTRESET
33234H
Description
Reserved. Write as read.
Divide by 4. When set, the PLL output is divided by 4 before clocking the logic. This bit
is intended for generating frequencies below the PLL spec limit of 15 MHz.
Reserved.
Input Clock Divisor. The DOTPLL M setting (resets to VGA timing).
Dot Clock PLL Divisor. The DOTPLL N setting (resets to VGA timing).
Post Scaler Divisor. The DOTPLL P setting (resets to VGA timing).
Software Flags. Unlike in the GLCP_SYS_RSTPLL register (MSR 4C000014h), these
bits are reset to 0 by a soft reset to the chip. These bits are otherwise read/writable by
software. They are not reset by a DOTRESET (bit 0 of this register).
Lock (Read Only). Lock signal from the DOTCLK PLL.
Half Pixel. The DC and VP receive a half-frequency Dot clock while the VOP logic
receives the normal frequency determined by the MDIV, NDIV, PDIV settings. This fea-
ture enables 8-bit VOP of SD data at 27 MHz VOP clock (pixel rate only 13.5 MHz).
Reserved. Write as read.
Dot PLL Bypass. This signal controls the bypass mode of the DOTCLK PLL. If this bit is
high, the DOTREF input clock directly drives the raw DOTCLK, bypassing the MDIV,
NDIV, and PDIV logic.
Power Down. This bit controls the power down mode of the DOTCLK PLL. It is active
high.
Capacitor Enable. The CAPEN signal to the DOTPLL enables an external capacitor for
the loop filter.
0: An external capacitor is not used. Internal circuitry is used to stabilize the loop opera-
1: Enables the use of an external capacitor for the loop filter.
Reserved.
Reserved. Read/writable bits not currently used.
Dot Clock Reset. The reset pin to the Dot clock time blocks. The Dot reset is held active
when CHIP_RESET (MSR 4C000014h[0]) is high, but this bit resets to 0. It is recom-
mended that software set this bit when changing PLL settings and observe LOCK before
releasing this reset. Unlike the SYS_RSTPLL register, this bit is not required to be set
before the other bits in this register affect the PLL.
tion.
GLCP_DOTPLL Bit Descriptions
GeodeLink™ Control Processor Register Descriptions
AMD Geode™ LX Processors Data Book
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