參數(shù)資料
型號: MVTX2804AG
廠商: ZARLINK SEMICONDUCTOR INC
元件分類: 網(wǎng)絡(luò)接口
英文描述: 8-Port 1000 Mbps Ethernet Distributed Switch
中文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA596
封裝: 40 X 40 MM, 2.33 MM HEIGHT, MS-034, HSBGA-596
文件頁數(shù): 38/174頁
文件大小: 2249K
代理商: MVTX2804AG
MVTX2804
Data Sheet
38
Zarlink Semiconductor Inc.
Bits [7:4]Signal select:
0: do not select
1: select the corresponding bit
For j = 2, 3, …, 5, the value of LED_BYTEOUT_[j] equals the logical AND of all selected bits. For j = 6, the
value is equal to the logical OR. Therefore, the programmable LEDSIG[5:2] registers allow any conjunctive
formula including any of the 4 status bits (COL, FDX, SP1, SP0) or their negations to be sent to the
LED_BYTEOUT_[5:2] pins. Similarly, the programmable LEDSIG[6] register allows any disjunctive formula
including any of the 4 status bits or their negations to be sent to pin LED_BYTEOUT_[6].
LEDSIG[7] is used for programming both LED_BYTEOUT_[1] and LED_BYTEOUT_[0]. As we will see, it has
other functions as well. The format is as follows:
10.0 Hardware Statistics Counter
10.1 Hardware Statistics Counters List
MVTX2804 hardware provides a full set of statistics counters for each Ethernet port. The CPU accesses these
counters through the CPU interface. All hardware counters are rollover counters. When a counter rolls over, the
CPU is interrupted, so that long-term statistics may be kept. The MAC detects all statistics, except for the delay
exceed discard counter (detected by buffer manager) and the filtering counter (detected by queue manager).
The following is the wrapped signal sent to the CPU through the command block.
7
4
3
0
GP
RxD
TxD
FC
P6
RxD
TxD
FC
Bits [7]
Global output polarity: this bit controls the output polarity of all LED_BYTEOUT_ and
LED_PORT_SEL pins.
(Default 0)
- 0: do not invert polarity (LED_BYTEOUT_[7:0] are high activated; LED_PORT_SEL[9:0] are
low activated)
- 1: invert polarity (LED_BYTEOUT_[7:0] are low activated; LED_PORT_SEL[9:0] are high
activated)
Signal select:
- 0: do not select
Bits [6:4]
- 1: select the corresponding bit
The value of LED_BYTEOUT_[1] equals the logical OR of all selected bits.
(Default 110)
Polarity control of LED_BYTEOUT_[6]
(Default 0)
- 0: do not invert
Bit [3]
- 1: invert
Signal select:
- 0: do not select
Bits [2:0]
- 1: select the corresponding bit
The value of LED_BYTEOUT_[0] equals the logical OR of all selected bits.
(Default 001)
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