zl50400 Zarlink Semiconductor, zl50400 Datasheet - Page 101
zl50400
Manufacturer Part Number
zl50400
Description
Lightly Managed/unmanaged 9-port 10/100 M Ethernet Switch
Manufacturer
Zarlink Semiconductor
Datasheet
1.ZL50400.pdf
(124 pages)
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shaper enabled will be scheduled by strict priority when the token is available. The shaper setting override the NS
setting.
12.3.9.14
Accessed by CPU (R/W)
W0 – QOSC36[7:0] – TOKEN_LIMIT_C00 (CPU Address 8A4)
W1 – QOSC37[7:0] – TOKEN_LIMIT_C01 (CPU Address 8A5)
W2 – QOSC38[7:0] – TOKEN_LIMIT_C02 (CPU Address 8A6)
W3 – QOSC39[7:0] – TOKEN_LIMIT_C03 (CPU Address 8A7)
QOSC36 through QOSC39 represents one set of token limit on the shaper of MMAC port. The granularity of the
numbers is 64 bytes. The shaper is implemented as leaky bucket and the limit here works as bucket size. Since the
hardware implementation can keep negative number, the limit can be as small as one and still can transmit
oversized frame, as long as one byte token is available.
12.3.10
NOTE: Device Manufacturing test registers.
12.3.10.1
CPU Address E00
Accessed by CPU (R/W)
Test group selection for testout[7:0].
12.3.10.2
CPU Address E01
Accessed by CPU (R/W)
Test group selection for testout[15:8].
12.3.10.3
CPU Address E02, E03
Accessed by CPU (RO)
12.3.10.4
CPU Address E10-E14
Accessed by CPU (R/W)
Disable timeout reset on selected state machine status.
Bits [5:0]:
Bit [6]:
Bit [7]:
(Group E Address) System Diagnostic
QOSC36 - QOSC39 - Shaper Control Port MMAC
DTSRL – Test Output Selection
DTSRM – Test Output Selection
TESTOUT0, TESTOUT1 – Testmux Output [7:0], [15:8]
MASK0-MASK4 – Timeout Reset Mask
Class scheduling credit
Shaper enable
Not strict priority apply
Zarlink Semiconductor Inc.
ZL50400
101
Data Sheet
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