FW82801DBM S L6DN Intel, FW82801DBM S L6DN Datasheet - Page 62

• Manufacturer Part Number: FW82801DBM S L6DN
• Manufacturer: Intel

Specifications of FW82801DBM S L6DN

• Lead Free Status / RoHS Status: Not Compliant

Signal Description
2.20.4
2.20.4.1
62
Figure 2-3. Example V5REF Sequencing Circuit
Table 2-21. Test Mode Selection
Note: RTCRST# may be driven low any time after PCIRST is inactive. Refer to
Test Signals
Test Mode Selection
When PWROK is active (high) for at least 76 PCI clocks, driving RTCRST# active (low) for a
number of PCI clocks (33 MHz) will activate a particular test mode a specified in
detailed description of the ICH4 test modes.
Number of PCI Clocks RTCRST#
Driven Low after PWROK Active
15–42
43–51
9–13
>53
<4
14
52
53
4
5
6
7
8
Vcc Supply
To System
(3.3 V)
Diode
5VREF
Reserved. DO NOT ATTEMPT
Reserved. DO NOT ATTEMPT
No Test Mode Selected
No Test Mode Selected
No Test Mode Selected
XOR Chain 4 Bandgap
XOR Chain 1
XOR Chain 2
XOR Chain 3
XOR Chain 4
XOR Chain 6
Test Mode
Long XOR
1 µF
All “Z”
1 KΩ
Intel
®
82801DBM ICH4-M Datasheet
5 V Supply
To System
Section 19.1
Table
for a
2-21.