ALXD800EEXJ2VD AMD (ADVANCED MICRO DEVICES), ALXD800EEXJ2VD Datasheet - Page 307

• Manufacturer Part Number: ALXD800EEXJ2VD
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of ALXD800EEXJ2VD

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

Display Controller Register Descriptions
6.6.1.5
MSR Address
Type
Reset Value
AMD Geode™ LX Processors Data Book
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
63:38
31:6
Bit
37
36
35
34
33
32
5
4
3
2
1
0
GLD Power Management MSR (GLD_MSR_PM)
Name
RSVD
CWD_CHECK_ERR
SYNCBUF_ERR
DFIFO_ERR
SMI_ERR
ADDR_ERR
TYPE_ERR
RSVD
CWD_CHECK_MSK
SYNCBUF_MSK
DFIFO_ERR_MASK
SMI_ERR_MASK
ADDR_ERR_MASK
TYPE_ERR_MASK
80002004h
R/W
00000000_00000015h
Description
Reserved. Set to 0.
Control Word Check Error. Reading a 1 indicates that an invalid control word was
read from the Display FIFO, which is indicative of a FIFO underrun. Writing a 1 to this
bit clears it.
Synchronizer Buffer Error. Reading a 1 indicates that the display pipe attempted to
read the synchronizer buffer while it was invalid. This is indicative of a synchronizer
buffer underrun. Writing a 1 to this bit clears it.
Display FIFO Underrun Error. Reading a 1 indicates that the asynchronous error
signal is being driven because the display FIFO has “run dry”. This implies that at
least one frame of the display was corrupted. Writing a 1 to this bit clears it; writing a
0 has no effect.
Uncleared SMI Error. Reading a 1 indicates that the asynchronous error signal is
being driven because a second SMI occurred while the first SMI went unserviced.
Unexpected Address Error. Reading a 1 indicates that the exception flag was set
because the DC received a GLIU0 transaction request.
Unexpected Type Error. Reading a 1 indicates that an asynchronous error has
occurred because the DC received a GLIU0 transaction with an undefined or unex-
pected type.
Reserved. Set to 0.
Control Word Check Error Mask. When set to 1, disables generation of the asyn-
chronous error signal when an invalid control word is read from the data FIFO.
Synchronizer Buffer Error Mask. When set to 1, disables generation of the asyn-
chronous error signal when invalid data is read from the synchronizer buffer.
Display FIFO Underrun Error Mask. When set to 1, disables generation of the asyn-
chronous error signal when at least one frame of the display was corrupted.
Uncleared SMI Error Mask. When set to 1, disables generation of the asynchronous
error signal when a second SMI occurred while the first SMI went unserviced.
Unexpected Address Error Mask. When set to 1, disables generation of an excep-
tion flag when the DC receives a GLIU0 request.
Unexpected Type Error Mask. When set to 1, disables generation of the asynchro-
nous error signal when the DC received a GLIU0 transaction with an undefined or
unexpected type.
GLD_MSR_ERROR Bit Descriptions
GLD_MSR_PM Register Map
RSVD
9
8
33234C
7
6
5
4
3
2
1
307
0