CS5535-UDCF AMD (ADVANCED MICRO DEVICES), CS5535-UDCF Datasheet - Page 432

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CS5535-UDCF

Manufacturer Part Number
CS5535-UDCF
Description
Manufacturer
AMD (ADVANCED MICRO DEVICES)
Datasheet

Specifications of CS5535-UDCF

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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6.13.2.20 Master DMA Channel [7:4] Write Mask (DMA_CH7:4_WR_MSK)
I/O Address
Type
Reset Value
6.13.2.21 Post Code Display Register (POST_DISPLAY)
I/O Address
Type
Reset Value
.
432
Bit
7:4
Bit
7:0
3
2
1
0
7
7
Name
RSVD
CH7_MASK
CH6_MASK
CH5_MASK
CH4_MASK
Name
POST_CODE
0DEh
WO
0Fh
080h
R/W
00h
6
6
31506B
RSVD
Description
Reserved. Write value is don’t care.
Channel 7 Mask Value. 0: Not masked; 1: Masked.
Channel 6 Mask Value. 0: Not masked; 1: Masked.
Channel 5 Mask Value. 0: Not masked; 1: Masked.
Channel 4 Mask Value. 0: Not masked; 1: Masked.
Description
Post Code Display Value. This register is the historical Port 80 that receives the POST
(Power-On Self-Test) codes reported during initialization. Typically used by the BIOS,
Port 80 may also be written to by any piece of executing software to provide status or
other information. The most recent value written to Port 80 is recorded in this register.
5
DMA_CH7:4_WR_MSK Bit Descriptions
5
DMA_CH7:4_WR_MSK Register Map
POST_DISPLAY Bit Descriptions
POST_DISPLAY Register Map
4
4
POST_CODE
CH7_MASK
3
3
AMD Geode™ CS5535 Companion Device Data Book
CH6_MASK
Direct Memory Access Register Descriptions
2
2
CH5_MASK
1
1
CH4_MASK
0
0

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