zl50417 ETC-unknow, zl50417 Datasheet - Page 70

• Manufacturer Part Number: zl50417
• Description: Unmanaged 16-port 10/100m +2-port Ethernet Switch
• Manufacturer: ETC-unknow

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registers. Two registers are required to be programmed for the logical port number. The respective priority can be
programmed to the User_Port [7:0] priority register. The port priority can be individually enabled/disabled via
User_Port_Enable register.
The User Defined Range provides a range of logical port numbers with the same priority level. Programming is
similar to the User Defined Logical Port. Instead of programming a fixed port number, an upper and lower limit need
to be programmed, they are: {RHIGHH, RHIGHL} and {RLOWH, RLOWL} respectively. If the value in the upper limit
is smaller or equal to the lower limit, the function is disabled. Any IP packet with a logical port that is less than the
upper limit and more than the lower limit will use the priority specified in RPRIORITY.
13.7.40.1
USER_PORT_0 - I²C Address h0D6 + 0DE; CPU Address 580(Low) + 581(high)
USER_PORT_1 - I²C Address h0D7 + 0DF; CPU Address 582 + 583
USER_PORT_2 - I²C Address h0D8 + 0E0; CPU Address 584 + 585
USER_PORT_3 - I²C Address h0D9 + 0E1; CPU Address 586 + 587
USER_PORT_4 - I²C Address h0DA + 0E2; CPU Address 588 + 589
USER_PORT_5 - I²C Address h0DB + 0E3; CPU Address 58A + 58B
USER_PORT_6 - I²C Address h0DC + 0E4; CPU Address 58C + 58D
USER_PORT_7 - I²C Address h0DD + 0E5; CPU Address 58E + 58F
Accessed by CPU, serial interface and I²C (R/W)
(Default 00) This register is duplicated eight times from PORT 0 through PORT 7 and allows the CPU to define
eight separate ports.
13.7.40.2
I²C Address h0E6, CPU Address 590
Accessed by serial interface and I²C (R/W)
The chip allows the CPU to define the priority
ZL50417
Bits[3:0]:
Bits [7:4]:
USER_PORT0_(0~7) – User Define Logical Port (0~7)
USER_PORT_[1:0]_PRIORITY - User Define Logic Port 1 and 0 Priority
Priority setting, transmission + dropping, for logic port 0
Priority setting, transmission + dropping, for logic port 1 (Default 00)
7
7
7
Priority 1
TCP/UDP Logic Port High
TCP/UDP Logic Port Low
5
Zarlink Semiconductor Inc.
4
Drop
3
Priority 0
1
Drop
0
0
0
Data Sheet