topic Re: T1022 IFC LSB in T-Series

T1022 IFC LSB

jack_mcculloch — Fri, 18 Sep 2020 07:32:35 GMT

Hi,

We would like to connect a TL16C752D Dual UART to the IFC bus on the T1022. We are assuming the GPCM mode is the most suitable for this application?

We are also unsure what LSB of address and data bus should be?

Should the address start at IFC_A31?

Is the Data bus LSB IFC_AD7 and MSB IFC_AD0?

r8070z — Mon, 21 Sep 2020 03:26:50 GMT

In the normal GPCM mode of operation ADDR bus carries the least significant bits. ADDR[31] will carry the lsb of the system address.

jack_mcculloch — Mon, 21 Sep 2020 07:49:22 GMT

Thanks.

And how do we align the data bus if we are using 8 bits?

r8070z — Tue, 22 Sep 2020 05:52:56 GMT

Connect 8-bit port to AD[0:7], AD0 is the most significant bit.