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82801BA ICH2
Datasheet
Figures
2-1
2-2
4-1
4-2
5-1
5-2
5-3
5-4
5-5
5-6
5-7
5-8
5-9
5-10
5-11
5-12
5-13
5-14
5-15
5-16
5-17
5-18
5-19
5-20
5-21
5-22
5-23
5-24
5-25
5-26
15-1
15-2
15-3
15-4
16-1
16-2
16-3
16-4
16-5
16-6
16-7
16-8
16-9
16-10
16-11
16-12
16-13
16-14
16-15
Required External RTC Circuit ...................................................................2-14
Example V5REF Sequencing Circuit..........................................................2-14
ICH2 and System Clock Domains ...............................................................4-1
Conceptual System Clock Diagram..............................................................4-2
Primary Device Status Register Error Reporting Logic.................................5-2
Secondary Status Register Error Reporting Logic........................................5-3
NMI# Generation Logic.................................................................................5-3
Integrated LAN Controller Block Diagram.....................................................5-6
64-Word EEPROM Read Instruction Waveform.........................................5-16
LPC Interface Diagram ...............................................................................5-19
Typical Timing for LFRAME#......................................................................5-23
Abort Mechanism........................................................................................5-23
ICH2 DMA Controller..................................................................................5-25
DMA Serial Channel Passing Protocol.......................................................5-29
DMA Request Assertion Through LDRQ#..................................................5-33
Coprocessor Error Timing Diagram............................................................5-65
Signal Strapping .........................................................................................5-67
Physical Region Descriptor Table Entry.....................................................5-91
Transfer Descriptor.....................................................................................5-99
Example Queue Conditions......................................................................5-106
USB Data Encoding..................................................................................5-109
USB Legacy Keyboard Flow Diagram ......................................................5-118
ICH2 Based AC’97 2.1..............................................................................5-133
AC’97 2.1 Controller-Codec Connection...................................................5-134
AC-link Protocol........................................................................................5-135
AC-link Powerdown Timing.......................................................................5-141
SDIN Wake Signaling ...............................................................................5-142
FWH Memory Cycle Preamble .................................................................5-145
Single Byte Read......................................................................................5-145
Single Byte Write ......................................................................................5-146
ICH2 Ballout (Top view — Left side)...........................................................15-2
ICH2 Ballout (Top view — Right side) ........................................................15-3
ICH2 Package (Top and Side Views) .........................................................15-9
ICH2 Package (Bottom View)...................................................................15-10
Clock Timing.............................................................................................16-16
Valid Delay From Rising Clock Edge........................................................16-16
Setup And Hold Times..............................................................................16-16
Float Delay................................................................................................16-16
Pulse Width...............................................................................................16-17
Output Enable Delay.................................................................................16-17
IDE PIO Mode...........................................................................................16-17
IDE Multiword DMA ..................................................................................16-18
Ultra ATA Mode (Drive Initiating a Burst Read)........................................16-18
Ultra ATA Mode (Sustained Burst) ...........................................................16-19
Ultra ATA Mode (Pausing a DMA Burst) ..................................................16-19
Ultra ATA Mode (Terminating a DMA Burst) ............................................16-20
USB Rise and Fall Times..........................................................................16-20
USB Jitter..................................................................................................16-20
USB EOP Width........................................................................................16-21
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