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Intel
82845G/82845GL/82845GV GMCH
Datasheet
9
Tables
2-1
2-2
3-1
3-2
3-3
3-4
3-5
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
DDR-to-SDR Signal Mapping ........................................................................26
Voltage Levels and RCOMP for Various Interfaces.......................................37
DRAM Controller/Host-Hub Register Address Map (Device 0)......................48
PAM Register Attributes.................................................................................65
Host-to-AGP Register Address Map (Device 1).............................................78
VGAEN and MDAP Bit Definitions.................................................................91
Integrated Graphics Device Register Address Map (Device2) ......................92
DINV Signals vs. Data Bytes .......................................................................105
Supported DDR DIMM Configurations.........................................................108
Supported SDR DIMM Configurations.........................................................108
Data Bytes on DIMM Used for Programming DRAM Registers...................109
Address Translation and Decoding..............................................................110
AGP Commands Supported by GMCH When Acting As an AGP Target....112
PCI Commands Supported by GMCH When Acting As a PCI Target .........115
PCI Commands Supported by GMCH When Acting As an
AGP/PCI_B Initiator.....................................................................................116
Display Port Characteristics.........................................................................131
Analog Port Characteristics .........................................................................132
Memory Segments and Their Attributes ......................................................141
Pre-allocated Memory..................................................................................144
Absolute Maximum Ratings.........................................................................147
Intel
82845G GMCH Package Thermal Resistance ..................................147
Power Characteristics..................................................................................148
Signal Groups..............................................................................................148
DC Operating Characteristics......................................................................150
DC Characteristics.......................................................................................151
DAC DC Characteristics: Functional Operating Range
(VCCDAC = 1.5 V ±5%)...............................................................................153
DAC Reference and Output Specifications..................................................154
DAC AC Characteristics...............................................................................154
Intel
82845G GMCH Ballout by Ball Number.............................................158
Intel
82845G GMCH Ballout by Signal Name............................................164
XOR Chain Output Pins...............................................................................173
XOR Chains 0, 1, and 2...............................................................................174
XOR Chains 3, 4, and 5...............................................................................176
XOR Chains 6, 7, and 8...............................................................................178
XOR Chains Excluded Pins.........................................................................180
Intel
82845GL/82845GV Ballout by Signal Name......................................187
4-9
4-10
5-1
5-2
6-1
6-2
6-3
6-4
6-5
6-6
6-7
6-8
6-9
7-1
7-2
8-1
8-2
8-3
8-4
8-5
9-1