这是英文资料:
Writing this register high
enables the global bypass (BYP = 1 in Figure 6-1). If the
Drive mode is set to digital High Z (DM[2:0] = 010b), then
the pin is selected for global input (PIN drives to the Global
Input Bus). In non-High Z modes, the block is selected for
global output (the Global OutputBus drives to PIN), bypass-ing the data register value (assuming I2C Enable = 0).
If the PRTxGS register is written to zero, the global in/out
function is disabled for the pin and the pin reflects the value
of PRT_DR.
这里的意思是说当PRT1GS为高时,开全局bypass。此时如果驱动模式是高z的时候时,为全局输入。不是高z的时候,
为全局输出。后面的这句话bypass-ing the data register value (assuming I2C Enable = 0).是什么意思呢。
我想请教大家,这里的全局输入和配置图里的RO0有关系?
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