參數(shù)資料
型號(hào): MC68302FC20CR2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP132
封裝: 0.950 X 0.950 INCH, 0.025 INCH PITCH, PLASTIC, QFP-132
文件頁數(shù): 72/128頁
文件大?。?/td> 641K
代理商: MC68302FC20CR2
ETHERNET Controller
MOTOROLA
MC68EN302 REFERENCE MANUAL
4-9
BSYEN—Busy Interrupt Enable.
Enable interrupts when BSY is set.
TBIEN—Transmit Buffer Interrupt Enable.
Enable interrupts when TBINT is set.
RBIEN—Receive Buffer Interrupt Enable.
Enable interrupts when RBINT is set.
4.1.7 ETHERNET CONFIGURATION (ECNFIG)
The Ethernet Configuration register provides protocol configuration information to the
Ethernet controller and can be written only when the ETHER_EN bit in the ECNTRL register
is clear. This register is cleared on a hardware reset.
15–4—Reserved.
Should be written to zero by the host processor. These bits are always read as zero.
RDT—Receive Disable on Transmit
0 = Receive path operates independently of transmit.
1 = Disable reception of frames while transmitting.
The purpose of this bit is to block reception of frames while this node is transmitting. If FDEN
= 1, this bit must be 0.
If FDEN = 0, this bit should be 1, except when:
1. LOOP = 1 to select internal feedback.
2. An external loopback is being performed.
3. This node wants to receive its own transmit frames for monitoring purposes.
HBC—HeartBeat Control.
0 = The heartbeat check is not performed. Following end of transmission, the HB bit in
the TxBD will be cleared.
1 = The heartbeat check is performed. Following end of transmission, if CLSN is not
asserted during the heartbeat window, the HB bit in the TxBD will be set.
FDEN—Full Duplex Enable.
0 = Carrier Sense and Collision inputs are active, deference and collision handling is
according to IEEE 802.3
1 = Frames are transmitted independent of Carrier Sense and Collision inputs.
15
14
13
12
11
10
987654
3
210
000000000000
RDT
HBC FDEN LOOP
相關(guān)PDF資料
PDF描述
MC68302FC16CR2 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP132
MC68LC302PU20CT 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP100
MC68EN302PV25BT 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP144
MC68302PV33C 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP144
SPAK302PV16VC 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP144
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68302FC25 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Integrated Multiprotocol Processor User’s Manual
MC68302FC25C 功能描述:IC MPU MULTI-PROTOCOL 132-PQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:M683xx 標(biāo)準(zhǔn)包裝:2 系列:MPC8xx 處理器類型:32-位 MPC8xx PowerQUICC 特點(diǎn):- 速度:133MHz 電壓:3.3V 安裝類型:表面貼裝 封裝/外殼:357-BBGA 供應(yīng)商設(shè)備封裝:357-PBGA(25x25) 包裝:托盤
MC68302FE16 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Communications Controller
MC68302FE16C 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Communications Controller
MC68302FE20 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Communications Controller