MT90883 Zarlink Semiconductor, MT90883 Datasheet - Page 17
MT90883
Manufacturer Part Number
MT90883
Description
(MT90880 - MT90883) TDM to Packet Processors
Manufacturer
Zarlink Semiconductor
Datasheet
1.MT90883.pdf
(97 pages)
- Current page: 17 of 97
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3.5
The external memory signals are NOT 5 V tolerant.
Active low signals are designated by a # suffix, in accordance with the convention used in common memory
data sheets
pci_trdy#
pci_irdy#
pci_stop#
pci_devsel#
pci_idsel
pci_perr#
pci_serr#
pci_lock#
pci_inta#
PCI_M66EN
ram_d[31:0]
ram_a[22:2]
ram_adsc#
ram_we[3:0]#
ram_oe[3:0]#
Signal
Signal
External Memory Interface
IOU
O U
O U
O U
I/O
I/O
I O
I O
I O
I O
I O
I O
I O
I O
I O
O
I
AA23
AF26
AC24
AE26
AB20
AD26
AB24
Y22
AF19
Y25
N2 [31], R4 [30], N1 [29], R5 [28],
P1 [27], T4 [26], P2 [25], P3 [24],
R1 [23], AB4 [22], AC2 [21], AD1 [20],
AC3 [19], AD2 [18], AC4 [17], AE1 [16],
AE2 [15], AD3 [14], AC5 [13], AF1 [12],
AF2 [11], AC6 [10], AE3 [9], AF3 [8],
AD4 [7], AB7 [6], AE4 [5], AF4 [4],
AD5 [3], AC7 [2], AE5 [1], AB8 [0]
T5 [22], R3 [21], U4 [20],
T1 [19], U5 [18], T2 [17], T3 [16],
U1 [15], U2 [14], U3 [13], V4 [12],
V1 [11], V5 [10], V2 [9], W4 [8],
W1 [7], W2 [6], Y1 [5], W5 [4],
W3 [3], Y4 [2]
AB3
Y5 [3], AA1 [2], Y3 [1], AA2 [0]
AB1 [3], AA4 [2], AB2 [1], AC1 [0]
Table 9 - External Memory Interface
Package Balls
Package Balls
Table 8 - PCI Interface
Zarlink Semiconductor Inc.
MT90880/1/2/3
17
PCI ID select
PCI interrupt (NOT open drain. See
PCI target ready
PCI initiator ready
PCI stop
PCI device select
PCI parity error
PCI system error (NOT open drain.
See “Open Drain Circuitry” on
page 71)
PCI lock. Refer to PCI spec section
2.2.3
“Open Drain Circuitry” on page 71)
33 MHz /66 MHz select
Buffer memory data
Buffer memory address
(up to 8 MBytes)
Buffer memory address status control
Buffer memory write chip select
Buffer memory read chip select
Description
Description
Data Sheet
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