refering to USBDM_SOIC_JS16(Minimal):
Is it right that BKGD_DRV is connected to input- and output pins on MC9S08JS16CWJ. BKGD_DRV drives only an input pin on U1B (74LV125AD)?
The connections are correct.
The two pins are used as outputs to control the buffer at different times with the other pin 3-state. Neither is actually used as an input.
This allows for faster manipulation of multiple port pins on a shared port but also allows independent control using a separate pin.
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