MVTX2804 Datasheet, PDF (140/174 Pages) Zarlink Semiconductor Inc – 8-Port 1000 Mbps Ethernet Distributed Switch

Ball No(s)
CPU Bus Interface
W4, E21
R29
R30
R26
P27
Symbol
MVTX2804
I/O
LA_A[20], 1
LB_A[20]
T_D[8]
1
T_D[9]
1
T_D[10] 1
T_D[11] 1
P28, P29
P30
P26
T_D[13:12] 1
T_D[14] 1
T_D[15] 1
After reset P_D[8:0] are used by the CPU bus interface
N30, N29, N28
P_D[2:0] 111
Data Sheet
Description
FDB memory size
11 - 2M per bank = 4M total
10 - 1M per bank = 2M total
0x - 512K per bank = 1M total
EEPROM installed
0 - EEPROM is installed
1 - EEPROM is not installed
MCT Aging enable
0 - MCT aging disable
1 - MCT aging enable
FCB handle aging enable
0 - FCB handle aging disable
1 - FCB handle aging enable
Timeout reset enable
0 - timeout reset disable
1 - timeout reset enable
Issue reset if any state machine did not
go back to idle for 5sec.
Reserved
CPU installed
0 - CPU installed
1 - CPU is not installed
External RAM test
0 - Perform the infinite loop of ZBT
RAM BIST. Debug test only
1 - Regular operation.
ZBT RAM la_clk turning
3'b000 - control by reg. LCLKCR[2:0]
3'b001 - delay by method # 0
3'b010 - delay by method # 1
3'b011 - delay by method # 2
3'b100 - delay by method # 3
3'b101 - delay by method # 4
3'b110 - delay by method # 5
3'b111 - delay by method # 6
USE METHOD 6 FOR NORMAL
OPERATION. External pull up not
required
140
Zarlink Semiconductor Inc.