TABLE
參數(shù)資料
型號(hào): XRT86VL32IB-F
廠商: Exar Corporation
文件頁數(shù): 92/155頁
文件大小: 0K
描述: IC LIU/FRAMER T1/E1/J1 2CH 225BG
標(biāo)準(zhǔn)包裝: 84
控制器類型: T1/E1/J1 調(diào)幀器,LIU
電源電壓: 3.3V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 225-BGA
供應(yīng)商設(shè)備封裝: 225-BGA(19x19)
包裝: 托盤
XRT86VL32
36
REV. V1.2.0
DUAL T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
TABLE 22: DMA 1 (READ) CONFIGURATION REGISTER (D1RCR)
HEX ADDRESS: 0Xn119
BIT
FUNCTION
TYPE
DEFAULT
DESCRIPTION-OPERATION
7-6
Reserved
-
Reserved
7
DMA1 RST
R/W
0
DMA_1 Reset
This bit resets the Receive DMA (Read) Channel 1
0 = Normal operation.
1 = A zero to one transition resets the Receive DMA (Read) channel 1.
6
DMA1 ENB
R/W
0
DMA1_ENB
This bit enables the Receive DMA_1 (Read) interface. After a receive
DMA is enabled, DMA transfers are only requested when the receive
cell buffer contains a complete message or cell.
The DMA read channel is used by the T1 Framer to transfer data from
the HDLC buffers within the T1 Framer to external memory. The DMA
Read cycle starts by T1 Framer asserting the DMA Request (REQ1)
‘low’, then the external DMA controller should drive the DMA Acknowl-
edge (ACK1) ‘low’ to indicate that it is ready to receive the data. The
T1 Framer should place new data on the Microprocessor data bus
each time the Read Signal is Strobed low if the RD is configured as a
Read Strobe. If RD is configured as a direction signal, then the T1
Framer would place new data on the Microprocessor data bus each
time the Write Signal (WR) is Strobed low.
0 = Disables the DMA_1 (Read) interface
1 = Enables the DMA_1 (Read) interface
5
RD TYPE
R/W
0
READ Type Select
This bit selects the function of the RD signal.
0 = RD functions as a Read Strobe signal
1 = RD acts as a direction signal (indicates whether the current bus
cycle is a read or write operation), and WR works as a data strobe.
4 - 3 Reserved
-
Reserved
2
DMA1_CHAN(2)
R/W
0
Channel Select
These three bits select which T1 channel within the chip uses the
Receive DMA_1 (Read) interface.
000 = Channel 0
001 = Reserved
001 = Channel 2
011 = Reserved
1xx = Reserved
1
DMA1_CHAN(1)
R/W
0
DMA1_CHAN(0)
R/W
0
相關(guān)PDF資料
PDF描述
XRT86VL34IB-F IC LIU/FRAMER T1/E1/J1 4CH 225BG
XRT86VL38IB484-F IC LIU/FRAMER T1/E1/J1 8CH 484BG
XRT86VX38IB329-F IC TI/E1/J1 FRAMER/LIU 329FPBGA
XRT94L31IB-L IC MAPPER DS3/E3/STS-1 504TBGA
XRT94L33IB-L IC MAPPER DS3/E3/STS-1 504TBGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT86VL34 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
XRT86VL34_07 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD T1/E1/J1 FRAMER/LIU COMBO - E1 REGISTER DESCRIPTION
XRT86VL34_1 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION
XRT86VL34_2 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
XRT86VL34ES 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流(最大值):595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray