845GL datasheet(9/193 Pages) INTEL

9 / 193 page

Intel® 82845G/82845GL/82845GV GMCH

Datasheet

Tables

2-1

DDR-to-SDR Signal Mapping ........................................................................26

2-2

Voltage Levels and RCOMP for Various Interfaces.......................................37

3-1

DRAM Controller/Host-Hub Register Address Map (Device 0)......................48

3-2

PAM Register Attributes.................................................................................65

3-3

Host-to-AGP Register Address Map (Device 1).............................................78

3-4

VGAEN and MDAP Bit Definitions .................................................................91

3-5

Integrated Graphics Device Register Address Map (Device2) ......................92

4-1

DINV Signals vs. Data Bytes .......................................................................105

4-2

Supported DDR DIMM Configurations.........................................................108

4-3

Supported SDR DIMM Configurations .........................................................108

4-4

Data Bytes on DIMM Used for Programming DRAM Registers...................109

4-5

Address Translation and Decoding..............................................................110

4-6

AGP Commands Supported by GMCH When Acting As an AGP Target ....112

4-7

PCI Commands Supported by GMCH When Acting As a PCI Target .........115

4-8

PCI Commands Supported by GMCH When Acting As an

AGP/PCI_B Initiator .....................................................................................116

4-9

Display Port Characteristics.........................................................................131

4-10

Analog Port Characteristics .........................................................................132

5-1

Memory Segments and Their Attributes ......................................................141

5-2

Pre-allocated Memory..................................................................................144

6-1

Absolute Maximum Ratings .........................................................................147

6-2

Intel® 82845G GMCH Package Thermal Resistance ..................................147

6-3

Power Characteristics ..................................................................................148

6-4

Signal Groups ..............................................................................................148

6-5

DC Operating Characteristics ......................................................................150

6-6

DC Characteristics .......................................................................................151

6-7

DAC DC Characteristics: Functional Operating Range

(VCCDAC = 1.5 V ±5%)...............................................................................153

6-8

DAC Reference and Output Specifications..................................................154

6-9

DAC AC Characteristics...............................................................................154

7-1

Intel® 82845G GMCH Ballout by Ball Number.............................................158

7-2

Intel® 82845G GMCH Ballout by Signal Name............................................164

8-1

XOR Chain Output Pins ...............................................................................173

8-2

XOR Chains 0, 1, and 2 ...............................................................................174

8-3

XOR Chains 3, 4, and 5 ...............................................................................176

8-4

XOR Chains 6, 7, and 8 ...............................................................................178

8-5

XOR Chains Excluded Pins .........................................................................180

9-1

Intel® 82845GL/82845GV Ballout by Signal Name......................................187

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