參數(shù)資料
型號(hào)： MB86976PF-G
元件分類： 微控制器/微處理器
英文描述： 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP144
封裝： PLASTIC, QFP-144
文件頁(yè)數(shù)： 28/46頁(yè)
文件大?。?/td> 212K
代理商： MB86976PF-G
xDSL WAN Ethernet Bridge Controller
34
Fujitsu Microelectronics, Inc.
Advanced 11/5/98
DMA_FIFO (Register 5E)
WAN Interface Registers (Group WAN)
HDLC_Address (Register 68)
HDLC_Control (Register 6A)
PPP_Protocol (Register 6C)
LEX_FIZO (Register 6E)
LEX_MacType (Register 70)
Bit
Symbol
Type
Description
7:0
DMA_FIFO
RW0
This register is the top of a 8/16 bit Data FIFO between the CPU and DRAM for DMA transactions.
15:8
0
N
If BYTEWORD pin is Hi, upper byte of DMA_FIFO word.
Bit
Symbol
Type
Value
Description
7:0
HDLC_Address
RW
FFh
Stores the data link control address field common to HDLC, PPP and PPP-LEX .
Bit
Symbol
Type
Value
Description
7:0
CONTROL
RW
03h
Stores the data link control address field common to HDLC, PPP and PPP-LEX .
Bit
Symbol
Type
Value
Description
7:0
PPP_Protocol1
RW
00h
First byte of PPP and PPP-LEX protocol field.
15:8
PPP_Protocol2
RW
41h
Second byte of PPP and PPP-LEX protocol field.
Bit
Symbol
Type
Description
3:0
PAD
RW0
PAD:
4
0
RW0
0: Reserved - Write 0.
5
Z
RW0
Z: IEEE 802.3. Pad must be zero filled to the minimum size.
6
I
RW0
I: Set this bit if the LAN ID is present. Else set, to 0 for LAN ID not present.
7
F
RW0
F: Set this bit if the LAN FCS is present. Else, set to 0 for LAN FCS not present.
Bit
Symbol
Type
Description
7:0
MAC_TYPE
RW0
MAC Type: PPP = LEX MAC type field. Default = 01h (IEEE 802.3 Ethernet with canonical
addresses.)
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