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| 型號(hào)： | PM5352-B1 |
| 英文描述： | Interface IC |
| 中文描述： | 接口IC |
| 文件頁數(shù)： | 34/77頁 |
| 文件大?。?/td> | 901K |
| 代理商： | PM5352-B1 |
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PM5352 S/UNI STAR
DATA SHEET
PMC-1990421
ISSUE 2
SATURN USER NETWORK INTERFACE 155 (STAR)
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
30
Pin Name
Type
Pin
No.
Function
PRPA
Output
(POS)
N20
POS-PHY Polled multi-PHY Receive Packet
Available (PRPA) signal.
PRPA indicates when data is available in the polled
receive FIFO. When PRPA is high, the receive
FIFO has at least one end of packet or a predefined
number of bytes to be read (the number of bytes
might be user programmable). PRPA is low when
the receive FIFO fill level is below the assertion
threshold and the FIFO contains no end of packet.
PRPA allows to poll every PHY while transferring
data from the selected PHY.
PRPA is driven by a PHY layer device when its
address is polled on RADR[2:0]. A PHY layer device
shall tristate PRPA when either the null-PHY
address (0x7H) or an address not matching the
address set by the PHY_ADR[2:0] register bits is
provided on RADR[2:0].
PRPA is only available in POS-PHY packet-level
transfer mode, as selected by the POS_PLVL
register bit. PRPA is tristated in byte-level transfer
mode. PRPA is updated on the rising edge of
RFCLK.
This Material Copyrighted by Its Respective Manufacturer
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