zl50400 Zarlink Semiconductor, zl50400 Datasheet - Page 107

• Manufacturer Part Number: zl50400
• Description: Lightly Managed/unmanaged 9-port 10/100 M Ethernet Switch
• Manufacturer: Zarlink Semiconductor

12.3.10.16
CPU Address EC0
Accessed by CPU (R/W)
If CPU wants to reset pools again, CPU has to clear bit 5 and then set bit 5.
Note: Before CPU doing so, CPU should set QCTRL (CPU Address EBA) bit 2 and bit 3 to one. After reset the
pools, CPU shall reprogram free granule link list (CPU address EC1, EC2, EC3, EC4, EC5, EC6). Then clear
QCTRL (EBA).
12.3.10.17
CPU address EC1
Accessed by CPU (R/W)
CPU address EC2
Accessed by CPU (R/W)
If CPU wants to write again, CPU has to clear bit 15 and then set bit 15.
Bits [3:0]
Bit [4]
Bit [5]
Bits [7:6]
Bits [7:0]
Bits [6:0]
Bit [7]
BUFF_RST
FCB_HEAD_PTR0, FCB_HEAD_PTR1
Fcb_head_ptr[14:8]. The head pointer of free granule link that CPU assigns.
Set 1 to write
Assign a value that the pool to be reset
0: port 0 pool
1: port 1 pool
2: port 2 pool
3: port 3 pool
4: port 4 pool
5: port 5 pool
6: port 6 pool
7: port 7 pool
8: port MMAC pool
9: shared pool
10: class 1 pool
11: class 2 pool
12: class 3 pool
13: multicast pool
14: cpu pool
15: reserved
If this bit is 1, then all the pools are assigned
Set 1 to reset the pools that are assigned
Reserved
Fcb_head_ptr[7:0]. The head pointer of free granule link that CPU assigns.
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ZL50400
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Data Sheet