Emerson MVME7100 사용자 설명서

When the SAFE_START switch is OFF, it indicates that the normal ENV setting should be used. 
When the switch is set to ON, GEVs, VPD, and SPD settings are ignored and known, safe, 
values are used.

When the switch is OFF, the flash memory map is normal and block A is selected as shown in 
Figure 3. When the switch is ON, block B is mapped to the highest address. 

When the FLASH BANK WP switch is OFF, it indicates that the entire NOR flash is not write-
protected. NOR flash is used for executing code. When the switch is ON, it indicates that the 
flash is write-protected and any writes to the flash devices are blocked by hardware.

The JTAG Pass-Thru switch is in the OFF position for normal operation. The switch is ON for 
pass-through mode.

The CORE1 Low Memory Offset switch is in the OFF position for normal operation. The switch 
is ON for enabling this feature.

The PMC 133 MHz switch is OFF for normal operation. When the switch is ON, the maximum 
frequency of operation for the PMC sites is 133 MHz. 133 MHz operation should not be enabled 
unless the PMC modules are designed to support 133 MHz operation. When the switch is OFF, 
the maximum frequency is 100 MHz.

S1-5 CORE1 

Low 

Memory Offset

[OFF]

ON

Normal operation

S1-6

PMC 133 MHz

[OFF]

ON

PMC 100 MHz maximum

PMC 133 MHz maximum

S1-7

Master WP

[OFF]

ON

Master write protect disabled

Master write protect enabled

S1-8

Reserved

1. Switch status is readable from System Status Register 1, bit 5.