932S890CKLF

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21

932S890C

RD890 SYSTEM CLOCK FOR AMD-BASED SERVERS

IDT®

RD890 SYSTEM CLOCK FOR AMD-BASED SERVERS 4

932S890C REV D 052011

Block Diagram

CPU PLL

SS capable

SRC PLL

SS capable

1GHz

SATA PLL

1GHz

USB48/SIO PLL

CPU(3:0)

HTT100(1:0)

SRC(13:0)

SATA

48M(1:0)

SIO(1:0)

DIFFERENTIAL

SINGLE-ENDED

REF(1:0)

14.3M

XTAL OSC

LOGIC

RESTORE#

SIO_SEL

X1

X2

932S890 Power Hookup

VDD GND

1 4 SATA PLL and out put

9 10 CPU PLL and outputs

19 18 HTT outputs

26 29 XTAL Osc and REF outputs

33 30 48MHz PLL and Outputs

33 36 SIO Outputs

41, 50, 59,

68

42, 49, 60 ,

67

SRC PLL and Outputs

Pin Numbe

r

Description

Table 2: IO_Vout select table

B5b2 B5b1 B5b0 IO_Vout

000

0.3V

001

0.4V

010

0.5V

011

0.6V

100

0.7V

101

0.8V

110

0.9V

111

1.0V

932S890C

RD890 SYSTEM CLOCK FOR AMD-BASED SERVERS

IDT®

RD890 SYSTEM CLOCK FOR AMD-BASED SERVERS 5

932S890C REV D 052011

Line

CPU FS4

Byte 3,

bit 4

(Spread

Enabl e)

CPU FS3

Byte 3,

bit 3

(DN/CTR

Spread)

CPU FS2

Byte3,

bit2

CPU FS1

Byte3,

bit1

CPU FS0

Byte3,

bit0

CPU

Speed

(MHz)

HTT

Spee d

(MHz)

Spread

%

0

00000184.4792.24

1

00001188.2494.12

2

00010192.0896.04

3

00011196.0098.00

40 0 1 0 0

200.00 100.00

5

00101204.00102.00

6

00110208.08104.04

7

00111212.24106.12

8

01000184.4792.24

9

01001188.2494.12

10

01010192.0896.04

11

01011196.0098.00

12

01100200.00100.00

13

01101204.00102.00

14

01110208.08104.04

15

01111212.24106.12

16

10000184.4792.24

17

10001188.2494.12

18

10010192.0896.04

19

10011196.0098.00

20

10100200.00100.00

21

10101204.00102.00

22

10110208.08104.04

23

10111212.24106.12

24

11000184.4792.24

25

11001

188.24 94.12

26

11010

192.08 96.04

27

11011

196.00 98.00

28

11100

200.00 100.00

29

11101

204.00 102.00

30

11110208.08104.04

31

11111212.24106.12

CPU Frequency Selection Table

DOWN

SPREAD'-

0.5%

CENTER

SPREAD

'+/-0.25%

SS OFF

0%

SS OFF

0%

932S890C

RD890 SYSTEM CLOCK FOR AMD-BASED SERVERS

IDT®

RD890 SYSTEM CLOCK FOR AMD-BASED SERVERS 6

932S890C REV D 052011

SRC Frequency Selection Table

Line

SRC FS4

Byte 4,

bit 4

(Spread

Enable)

SRC FS3

Byte 4,

bi t 3

(D WN/CTR

Spread)

SRC FS2

Byte 4,

bit2

SRC FS1

Byte 4,

bi t1

SRC FS0

Byte 4,

bit0

SRC

(MHz)

Sprd

%

0

0 0 0 0 0 92.24

1

0 0 0 0 1 94.12

2

0 0 0 1 0 96.04

3

0 0 0 1 1 98.00

40 0 1 0 0

100.00

5

0 0 1 0 1 102.00

6

0 0 1 1 0 104.04

7

0 0 1 1 1 106.12

8

0 1 0 0 0 92.24

9

0 1 0 0 1 94.12

10

0 1 0 1 0 96.04

11

0 1 0 1 1 98.00

12

0 1 1 0 0 100.00

13

0 1 1 0 1 102.00

14

0 1 1 1 0 104.04

15

0 1 1 1 1 106.12

16

1 0 0 0 0 92.24

17

1 0 0 0 1 94.12

18

1 0 0 1 0 96.04

19

1 0 0 1 1 98.00

20

1 0 1 0 0 100.00

21

1 0 1 0 1 102.00

22

1 0 1 1 0 104.04

23

1 0 1 1 1 106.12

24

1 1 0 0 0 92.24

25

11001

94.12

26

11010

96.04

27

11011

98.00

28

11100

100.00

29

11101

102.00

30

1 1 1 1 0 104.04

31

1 1 1 1 1 106.12

CENTER

SPREAD

'+/-0.25%

SS OFF

0%

SS OFF

0%

DOWN

SPREAD'

-

0.5%

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21

932S890CKLF

Mfr. #:

Buy 932S890CKLF

Manufacturer:

IDT

Description:

Clock Synthesizer / Jitter Cleaner SERVER MAIN CLOCK

Lifecycle:

New from this manufacturer.

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