如题,请问C6455 BOOT模式选择EMIFA ROM boot,对应的CFGGP[2:0]应该如何配置?
可以参考那个文件经行相应配置选择?
Tony Tang:
datasheet
2.4.1 Boot Modes Supported
EMIFA 8-bit ROM boot (BOOTMODE[3:0] = 0100b)
配的是BOOTMODE管脚,CFGGP[2:0] 与EMIFA boot无关。
LANG ZHU:
回复 Tony Tang:
在datasheet中有如下 如下描述:
1. Configuration GPI (CFGGP[2:0]) (AEA[2:0])
These pins are latched during reset and their values are shown in the DEVSTAT register. These values can be used by software routines for boot operations.
2. CFGGP[2:0] pins must be set to 000b during reset for proper operation of the PCI boot mode。
如何理解?