參數(shù)資料
型號: PM2329
英文描述: Telecommunication IC
中文描述: 通信集成電路
文件頁數(shù): 20/162頁
文件大小: 1581K
代理商: PM2329
Proprietary and Confidential to PMC-Sierra, Inc and for its Customers
Internal Use
Document ID: PMC-2010146, Issue 4
23
PM2329 ClassiPI Network Classification Processor Datasheet
2.2 Signals Listed by Function
Table 1
Timing and Common Control Signals
Signal Name
RESET*
Ball # Size
Y3
I/O
Description
1
I
Reset Input (Active Low)
This is the asynchronous reset input, it must be active
for a minimum of 100 SCLK cycles. When this signal is
asserted, PM2329 is forced into its reset state.
PM2329 ID Number
CID [2:0]
AB3
Y4
AB2
3
I
These signals are sensed at reset to determine the 3-bit
PM2329 ID number.
SD Width Select 64
SDWIDTH64
AA3
1
I
This signal is sampled at reset to determine the width of
the System Interface Data bus.
0: 32-bit (Data transfers on SD[63:32] only)
1: 64-bit
ZBT Mode Select
ZBTMODE
AB1
1
I
This signal is sampled at reset to indicate the System
Bus Interface type
0: SyncBurst Pipelined Synchronous SCD SRAM Mode
1: ZBT Pipelined Synchronous SRAM Mode
E-RAM Clock Output
ECLKOUT
N23
1
O
Regenerated SCLK is output on this pin. When the
device is operating in the single device configuration,
this signal should be used to drive the external SSRAM
clock input. When the device is operating in cascade
mode, it is recommended that an external PLL be used
to generate the clock input for the Extended SSRAM
array. The external PLL must guarantee a minimum
skew to meet the SSRAM timing requirement.
Internal Clock Input
ACLKIN
P4
1
I
During normal device operation, this input should be
tied low.
When PLLA is byspassed, this pin drives the internal
ACLK signal.
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