参数资料
型号: XRT83L314IB-L
厂商: Exar Corporation
文件页数: 41/84页
文件大小: 0K
描述: IC LIU T1/E1/J1 14CH 304TBGA
标准包装: 27
类型: 线路接口装置(LIU)
驱动器/接收器数: 14/14
规程: T1,E1,J1
电源电压: 3.135 V ~ 3.465 V
安装类型: 表面贴装
封装/外壳: 304-LBGA
供应商设备封装: 304-TBGA(31x31)
包装: 托盘
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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