mds108 Zarlink Semiconductor, mds108 Datasheet - Page 32

• Manufacturer Part Number: mds108
• Description: Unmanaged 9-port 10/100 Mbps Ethernet Switch
• Manufacturer: Zarlink Semiconductor

14.4
Suggestion Clock rate for various configurations:
10 M RMII
100 M RMII
100 M RMII
100 M RMII
100 M RMII
100 M RMII
Symbol
Port 0-7
C1
C2
C3
C4
C5
C6
Clock Frequency Specifications
Configuration
SCLK - Core System Clock Input
M_CLK - RMII Port Clock
M8_REFCLK - MII Reference Clock
L_CLK - Frame Buffer Memory Clock
M_MDC - MII Management Data Clock
SCL - I
10/100 M MII
Not Used
10/100 M MII
200 M MII
300 M MII
400 M MII
Port 8
2
C Data Clock
Parameter
66.66 M
SCLK
50 M
55 M
60 M
75 M
80 M
Input
Zarlink Semiconductor Inc.
M_CLK
(RMII)
50 M
50 M
50 M
50 M
50 M
50 M
MDS108
32
M8_REF
1.56 M
50 M
25 M
50 M
50 M
50 K
100 M
(Hz)
50 M
75 M
--
--
--
M_MDC = SCLK/32
L_CLK = SCLK
SCL = M_CLK/1000
L_CLK
=SCLK
=SCLK
=SCLK
=SCLK
=SCLK
=SCLK
Note:
=SCLK/32
=SCLK/32
=SCLK/32
=SCLK/32
=SCLK/32
=SCLK/32
M_MDC
Output
Data Sheet
50 K
50 K
50 K
50 K
50 K
50 K
SCL