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參數(shù)資料
| 型號： | IP100 |
| 英文描述： | PCI 10/100M Single Chip Ethernet Controller |
| 中文描述： | 單芯片的PCI個10/100M以太網(wǎng)控制器 |
| 文件頁數(shù)： | 56/92頁 |
| 文件大小： | 2801K |
| 代理商： | IP100 |
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IP100
10.4.25 RxDMAPollPeriod
Class............................. LAN I/O Registers, DMA
Base Address ............... IoBaseAddress register value
Address Offset .............. 0x16
Default .......................... 0x00
Width ............................ 8 bits
RxDMAPollPeriod determines the rate at which the current RFD’s RxDMAComplete bit of the RxFrameStatus
field in the RFD is polled for a logic 0. Polling is disabled when RxDMAPollPeriod is 0x00. RxDMAPollPeriod is
specified in increments of 320 ns. The maximum value is 127 (or 40.64 us).
BIT
BIT NAME
R/W
6..0
RxDMAPollPeriod
R/W
Receive DMA Poll Period. RxDMAPollPeriod is the number of 320ns
intervals between polls of the RxDMAComplete bit in the
RxFrameStatus field of the current RFD.
7
Reserved
N/A
Reserved for future use.
10.4.26 RxDMAStatus
Class............................. LAN I/O Registers, DMA
Base Address ............... IoBaseAddress register value
Address Offset .............. 0x0c
Default .......................... 0x00000000
Width ............................ 32 bits
RxDMAStatus shows the status of various operations in the receive DMA logic. Host systems should read
RxDMAStatus only if the RxDMAHalted bit in the DMACtrl register is a logic 1. Otherwise the IP100 may change
RFDs between accesses to RxDMAStatus. Many bits of RxDMAStatus are identical to corresponding bits of the
RxFrameStatus field.\
BIT
BIT NAME
R/W
12..0
RxDMAFrameLen
R
Receive DMA Frame Length.RxDMAFrameLen is similar to the
RxDMAFrameLen bit of the RxFrameStatus field, except that
RxDMAFrameLen provides a real-time indication of the number of
bytes transferred during a receive DMA operation.
13
Reserved
N/A
Reserved for future use.
14
RxFrameError
R
See the RxFrameError bit of the RxFrameStatus field.
15
RxDMAComplete
R
See the RxDMAComplete bit of the RxFrameStatus field.
16
RxFIFOOverrun
R
See the RxFIFOOverrun bit of the RxFrameStatus field.
17
RxRuntFrame
R
See the RxRuntFrame bit of the RxFrameStatus field.
18
RxAlignmentError
R
See the RxAlignmentError bit of the RxFrameStatus field.
19
RxFCSError
R
See the RxFCSError bit of the RxFrameStatus field.
20
RxOversizedFrame
R
See the RxOversizedFrame bit of the RxFrameStatus field.
22..21
Reserved
N/A
Reserved for future use.
23
DribbleBits
R
See the DribbleBits bit of the RxFrameStatus field.
24
RxDMAOverflow
R
See the RxDMAOverflow bit of the RxFrameStatus field.
31..25
Reserved
N/A
Reserved for future use.
Copyright
2003, IC Plus Corp.
All rights reserved.
Preliminary, Specification subject to change without notice.
56/92
IP100-DS-R03
May 27, 2003
BIT DESCRIPTION
BIT DESCRIPTION
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| IP1060BJ | Voltage-Mode SMPS Controller |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| IP1000A | 制造商:IC PLUS 功能描述:IP1000A |
| IP1000ALF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Gigabit Ethernet NIC Single Chip |
| IP1000ALF-DS-R01 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Gigabit Ethernet NIC Single Chip |
| IP1000ALF-DS-R02 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Gigabit Ethernet NIC Single Chip |
| IP1000ALF-DS-R03 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Gigabit Ethernet NIC Single Chip |
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