參數(shù)資料
型號: XRT83L314IB-L
廠商: Exar Corporation
文件頁數(shù): 41/84頁
文件大?。?/td> 0K
描述: IC LIU T1/E1/J1 14CH 304TBGA
標準包裝: 27
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 14/14
規(guī)程: T1,E1,J1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 304-LBGA
供應(yīng)商設(shè)備封裝: 304-TBGA(31x31)
包裝: 托盤
XRT83L314
14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.0
42
5.0
MICROPROCESSOR INTERFACE BLOCK
The Microprocessor Interface section supports communication between the local microprocessor (P) and the
LIU. The XRT83L314 supports an Intel asynchronous interface, Motorola 68K asynchronous, and a Motorola
Power PC interface. The microprocessor interface is selected by the state of the PTS[2:0] input pins. Select-
ing the microprocessor interface is shown in Table 14.
The XRT83L314 uses multipurpose pins to configure the device appropriately. The local P configures the LIU
by writing data into specific addressable, on-chip Read/Write registers. The microprocessor interface provides
the signals which are required for a general purpose microprocessor to read or write data into these registers.
The microprocessor interface also supports polled and interrupt driven environments. A simplified block dia-
gram of the microprocessor is shown in Figure 41.
TABLE 14: SELECTING THE MICROPROCESSOR INTERFACE MODE
PTS[2:0]
MICROPROCESSOR MODE
0h (000)
Intel 68HC11, 8051, 80C188
(Asynchronous)
1h (001)
Motorola 68K (Asynchronous)
7h (111)
Motorola MPC8260, MPC860
Power PC (Synchronous)
FIGURE 41. SIMPLIFIED BLOCK DIAGRAM OF THE MICROPROCESSOR INTERFACE BLOCK
Microprocessor
Interface
WR_R/W
RD_WE
ALE
PType [2:0]
RDY_TA
Reset
Pclk
CS
INT
ADDR[10:0]
DATA[7:0]
CS5
CS4
CS3
CS2
CS1
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