MEA-224 Zarlink Semiconductor, Inc., MEA-224 Datasheet - Page 16

• Manufacturer Part Number: MEA-224
• Description: 4-Port, Layer 2 Fast Ethernet Access Controller
• Manufacturer: Zarlink Semiconductor, Inc.

XpressFlow-2001 Series –
Ethernet Switch Chip-set
4.3.2 Bus Cycle Waveforms
©
S_MSGEN#
1997
S_MSGEN#
S_D[31:0]
S_TABT#
S_EOF#
S_D[31:0]
S_CLK
S_EOF#
S_IRDY
S_CLK
(57(; (7:25.6
High Priority Request pre-empts the low priority request.
Command Cycle
P R E L I M I N A R Y
C0
C0
S_HPREQ#
S_REQ[k]#
S_REQ[j]#
XpressFlow Bus Data Transfer Cycle
S_CLK
Other XpressFlow Bus Cycles
C1
C1
4-Port 10/100M Ethernet Access Controller
D0
Data Xfer w/o Data
Page: 16
D1
C0
D A T A
D2
D3
C1
D4
EOF
S H E E T
Aborted Command
D5
Rev. 4.0 –December, 1997
C0
EoF
C1
EA-224