C5001 Datasheet, PDF (8/13 Pages) List of Unclassifed Manufacturers – Low Skew Multiple Frequency PCI Clock Generator with EMI Reducing SSCG.

C5001
Low Skew Multiple Frequency PCI Clock Generator with EMI Reducing SSCG.
Approved Product
Serial Control Registers (Cont.)
Byte 1: Clock Register (1 = enable, 0 = Stopped)
Bit
@Pup
Pin# Description
7
1
-
0= Test Mode ( XIN replaces VCO output ), 1=Normal
6
0
10
Bit 6 Bit 5 PCI9 Frequency
-----------------------------------------
5
HW
10
00
33 MHz
01
66 MHz
10
16.5 MHz
11
8.25 MHz
4
0
27
REF-CLK0 mode ( 1 = REF, 0 = PCI0 )
3
HW
27
CLK0 (33.3 MHz = 0, 66.6 MHz = 1)(if Byte 3 Bit 4=0)
2
0
-
SSCG (OFF = 0, ON = 1)
1
1
10
CLK9 ( Active = 1, Forced low = 0 )
0
1
11
CLK8 ( Active = 1, Forced low = 0 )
Byte 2: Clock Register (1 = 66.6 MHz, 0 = 33.3 MHz)
Bit
@Pup Pin# Description
7
HW
11 CLK8 (33.3 MHz = 0, 66.6 MHz = 1)
6
HW
14 CLK7 (33.3 MHz = 0, 66.6 MHz = 1)
5
HW
15 CLK6 (33.3 MHz = 0, 66.6 MHz = 1)
4
HW
18 CLK5 (33.3 MHz = 0, 66.6 MHz = 1)
3
HW
19 CLK4 (33.3 MHz = 0, 66.6 MHz = 1)
2
HW
22 CLK3 (33.3 MHz = 0, 66.6 MHz = 1)
1
HW
23 CLK2 (33.3 MHz = 0, 66.6 MHz = 1)
0
HW
26 CLK1 (33.3 MHz = 0, 66.6 MHz = 1)
Note: HW = Power up programmed via hardware (voltage at pin).
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
MILPITAS, CA 95035. TEL: [phone]. FAX [phone]
Rev.2.1
6/14/1999
Page 8 of 13