System, Intel, Power connector and reset control – Intel 815 User Manual

Page 208: System, part 2, Resume reset circuitry

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background image

5

5

4

4

3

3

2

2

1

1

D

D

C

C

B

B

A

A

SN74LVC06A has 5V
input tolerance

ITP RESET CIRCUIT - FOR DEBUG ONLY

DO NOT POPULATE R95

RESUME RESET CIRCUITRY

Schmitt Trigger Logic using a
22msec delay

Place JP13 Near Front Panel Header (J20)

Do Not Stuff R126 - For Test Only:

If R125 is Populated, R126
Must Be DE-Populated.

SN74LVC06A has 5V input

tolerance

1k Ohm Pull-up to 3.3V is on VRM Sheet

System

Power Connector and Reset Control

INTEL(R) 82815 CHIPSET CUSTOMER REFERENCE BOARD

SYSTEM, PART 2

40

1.0

3-26-01

35

Platform Apps Engineering

1900 Prairie City Road
Folsom, CA 95630

REV.

R

Last Revision Date:

Sheet:

of

Title:

intel

DBRST

DBRPOK_DLY

PWROK#

RST_PD

CK_PWRD

V3RSMRST

ST69

APOK_ST

ST23

5VPSON

ATX_PWOK

SLP_S3#

13,31

DBRPOK

DBRESET#

4

VRM_PWRGD

33

SLP_S3#

13,31

PWRGOOD

4

PWROK

13,30,31

RSMRST#

13,30

CK_PWRDN#

5

DBRPOK

VCC3SBY

VCC3SBY

VCC3SBY

VCC5SBY

VCC2_5

VCC3SBY

VCC3SBY

VCC3SBY

VCC3SBY

VCC3SBY

VCC5SBY

VCC12

VCC5SBY

VCC_5-

VCC12-

VCC3SBY

VCC3SBY

VCC3_3

VCC5

R344

1.8k

1

2

R302
R

1

2

R123

243

1

2

R95

0K

1

2

R87

20k

1

2

R88

4.7K

1

2

R62

330

1

2

R127

22K

1

2

R126

0K

1

2

R125

8.2K

1

2

R91

0K

1

2

SW 1

PBSWITCH

R81

22

1

2

R94

0K

1

2

R128

8.2k

1

2

C148

1.0UF

1

2

C248

1.0UF

1

2

C160

0.01UF

1

2

JP13

1

2

U10C

SN74LVC08A

10

9

8

14

7

U10B

SN74LVC08A

5

4

6

14

7

ATX

J5

1
2
3
4
5
6
7
8
9
10

11
12
13
14
15
16
17
18
19
20

3_3V1
3_3V2

GND3

5V4

GND5

5V6

GND7

PW_OK

5VB

12V

3_3V11
-12V
GND13
PS_ON
GND15
GND16
GND17
-5V
5V19
5V20

+

C161

10UF

1

2

U9B

74LS132

6

14

4

5

7

U7B

SN74LVC06A

4

14

7

3

U7A

SN74LVC06A

2

14

7

1

U7C

SN74LVC06A

6

14

7

5

U12D

74LVC14A

8

14

7

9

U12C

74LVC14A

6

14

7

5

U12B

74LVC14A

4

14

7

3

U12A

74LVC14A

2

14

7

1

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