參數資料
型號: DS33ZH11
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 網絡接口
英文描述: Ethernet Mapper
中文描述: DATACOM, NETWORK INTERFACE SUPPORT CIRCUIT, PBGA100
封裝: 10 X 10 MM, 1.41 MM HEIGHT, 0.80 MM PITCH, CSBGA-100
文件頁數: 121/169頁
文件大?。?/td> 1049K
代理商: DS33ZH11
DS33Z11 Ethernet Mapper
determine the byte location of the threshold. Note that the receive queue is for data that was received from the
Ethernet Interface to be sent to the Serial Interface.
121 of 169
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
SU.QRIE
Receive Queue Cross Threshold enable
15Ch
7
-
0
6
-
0
5
-
0
4
-
0
3
2
1
0
RFOVFIE
0
RQVFIE
0
RQLTIE
0
RQHTIE
0
Bit 3: Receive FIFO Overflow Interrupt Enable (RFOVFIE)
If this bit is set, the interrupt is enabled for
RFOVFLS.
Bit 2: Receive Queue Overflow Interrupt Enable (RQVFIE)
If this bit is set, the interrupt is enabled for
RQOVFLS.
Bit 1: Receive Queue Crosses Low Threshold Interrupt Enable (RQLTIE)
If this bit is set, the watermark
interrupt is enabled for RQLTS.
Bit 0: Receive Queue Crosses High Threshold Interrupt Enable (RQHTIE)
If this bit is set, the watermark
interrupt is enabled for RQHTS.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
SU.QCRLS
Queue Cross Threshold Latched Status
15Dh
7
-
-
6
-
-
5
-
-
4
-
-
3
2
1
0
RFOVFLS
-
RQOVFLS
-
RQHTLS
-
RQLTLS
-
Bit 3: Receive FIFO Overflow latched Status (RFOVFLS)
This bit is set if the receive FIFO overflows for the
data to be transmitted from the MAC to the SDRAM.
Bit 2: Receive Queue Overflow Latched Status (RQOVFLS)
This bit is set if the receive queue has overflowed.
This register is cleared after a read.
Bit 1: Receive Queue for Connection Crossed High Threshold Latched Status (RQHTLS)
This bit is set if the
receive queue crosses the high Watermark. This register is cleared after a read.
Bit 0: Receive Queue for Connection Crossed Low Threshold latched status (RQLTLS)
This bit is set if the
receive queue crosses the low Watermark. This register is cleared after a read.
Note the bit order differences in the high/low threshold indications in SU.QCRLS and the interrupt enables in
SU.QRIE.
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