参数资料
型号: WJLXT386LEB2
厂商: INTEL CORP
元件分类: 数字传输电路
英文描述: DATACOM, PCM TRANSCEIVER, PQFP100
封装: 14 X 14MM, ROHS COMPLIANT, LQFP-100
文件页数: 16/86页
文件大小: 1081K
代理商: WJLXT386LEB2
QUAD T1/E1/J1 Transceiver — LXT386
Datasheet
23
3.1.1
Reset Operation
In Revision B1, no connect pin 100 was converted to the RESET pin. Only revision B1 requires a
pull up resistor to VCC at pin 100, the pull up resistor is unnecessary for all other revisions. Figure
4 shows the connections needed for revision B1 only. Note: The BGA package does not have a
RESET pin.
There are two methods of resetting the LXT386:
1. Override Reset - Setting the RESET pin low in either hardware mode or host mode. Until the
RESET pin returns high, the LXT386 remains frozen and will not function. Once the RESET
pin has returned high, the LXT386 will operaate normally. Override Reset changes all the
internal registers to their default values.
2. Software Reset - Writing to the RES reset register initiates a 1microsecond reset cycle, except
in Intel non-multiplexed mode. In Intel non-multiplexed mode, the reset cycle takes 2
microseconds. Please refer to Host mode section for more information. This operation
changes all LXT386 registers to their default values.
Figure 5. Pullup Resistor to RESET
LXT386LE
VCC
1K
100
RESET
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