参数资料
型号: EM250-RCM-R
厂商: Silicon Laboratories Inc
文件页数: 107/124页
文件大小: 0K
描述: EM250 RCM BOARD
标准包装: 12
类型: 收发器,802.15.4/Zigbee
频率: 2.4GHz
适用于相关产品: EM250
其它名称: 636-1023
EM250
6 Programming and Debug Interface (SIF Module)
SIF is a synchronous serial interface developed by Cambridge Consultants Ltd. It is the primary programming
and debug interface of the EM250. The SIF module allows external devices to read and write memory-mapped
registers in real-time without changing the functionality or timing of the XAP2b core. See document AN695,
PCB Design with an EM250 , for the PCB-level design details regarding the implementation of the SIF interface.
The EM250 pins involved in the SIF Interface:
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nSIF_LOAD
SIF_CLK
SIF_MOSI
SIF_MISO
nRESET
In addition, the VDD_PADS and Ground Net are required for external voltage translation and buffering of the
SIF Signals.
The SIF interface provides the following:
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PCB production test interface via Virtual UART and a Debug Adapter (ISA)
Programming and debug interface during EmberZNet PRO Application Development
In order to achieve the deep sleep currents specified in Table 5, a pull-down resistor must be connected to
the SIF_MOSI pad. In addition, Silicon Labs recommends a pull-up resistor to be placed on the nSIF_LOAD net
in order to prevent noise from coupling onto the Signal. Both of these recommendations are documented
within the EM250 Reference designs.
When developing application-specific manufacturing test procedures, Silicon Labs recommends the designer
refer to document AN700, Manufacturing Test Guidelines .
This document provides more detail regarding importance of designing the proper SIF interface as well as
different tools offered by Silicon Labs for Production Programming on the MFG Production Line.
Page 107
120-0082-000V Rev 1.1
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