MTD508 Myson Technology, MTD508 Datasheet - Page 12

• Manufacturer Part Number: MTD508
• Description: 8-port Switch
• Manufacturer: Myson Technology

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Internal MII Registers Access and Control
The MTD508 supports 2 serial pins (SDIO/SDC) for internal registers access and control. The detailed registers
information is presented in the section on “Internal MII Registers”.
LED Display
The MTD508 uses 10 pins to output two kinds of LED display: LEDDATA[7:0], LEDCLK1, and LEDCLK2.
LEDCLK1 rising edge and LEDDATA[7:0] are used to report Port7-0 link/receive activity led status. LEDCLK2
rising edge and LEDDATA[4:0] are used to report packet buffer utilization rating, and LEDDATA[7] is used to
report external memory test result (after power reset, the MTD508 will test external SDRAM automatically), and
LEDDATA[6] reports the buffer almost full alarm signal.
Memory Type
256K32
236K32
512K32
Myson-Century Technology
Memory Chip No.
x 1
x 2
x 1
A[8]
A8
A8
A9
CS0B
CS0B
CS0B
CS0B
MTD508
CS1B
CS1B
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NC
A8