GE DS200CTBAG1A机械保护装置
JTAG直通JTAG直通开关处于正常操作的OFF位置。对于直通模式，开关为ON。2.4.1.5低内存偏移正常操作时，CORE1低内存偏移开关处于关闭位置。开关打开以启用此功能。PMC 133MHz PMC 133MHz开关关闭以正常工作。开关接通时，PMC站点的最大工作频率为133MHz。除非PMC模块设计为支持133MHz操作，否则不应启用133MHz操作。当开关关闭时，最大频率为100MHz。2.4.1.7主WP正常操作时，主写保护（WP）开关关闭。当此开关打开时，将禁用对NOR闪存、NAND闪存、MRAM和I2C EEPROM的写入。当开关关闭时，根据其他开关和控制位，可以允许写入非易失性设备。
JTAG Pass-Thru The JTAG Pass-Thru switch is in the OFF position for normal operation. The switch is ON for pass-through mode. 2.4.1.5 Low Memory Offset The CORE1 Low Memory Offset switch is in the OFF position for normal operation. The switch is ON for enabling this feature.PMC 133MHz The PMC 133MHz switch is OFF for normal operation. When the switch is ON, the maximum frequency of operation for the PMC sites is 133MHz. 133MHz operation should not be enabled unless the PMC modules are designed to support 133MHz operation. When the switch is OFF, the maximum frequency is 100MHz. 2.4.1.7 Master WP The Master Write Protect (WP) switch is OFF for normal operation. When this switch is ON, writes to the NOR flash, NAND flash, MRAM and I2C EEPROMs are disabled. When the switch is OFF, writes to the non-volatile devices may be allowed depending on other switches and control bits.
