PSoC62 UART smartcard mode

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JeHu_3414236
Level 5
Level 5
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I want to use UART in smartcard mode which connects to another chip requiring a TX/RX pin and a clock pin.  How do I configure the clock pin to be output to the other chip?  PSoC Creator creates a rx_tx pin only.  Also the other chip supports T=0 and T=1 mode.  What mode does PSoC support?

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JeHu,

The NXP datasheet gives you much of the necessary information.

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By the example given in the datasheet, if you use CLK = 1.5MHz and Fi=372 (who knows where that comes from) and Di = 1 (again who knows) then your UART needs to be set to 4032 baud 8N1.

Len

Here's a circuit that should implement the physical protocol at 4032 baud (bps).   You have to come up with the SW for the protocol.

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Attached is a Creator project.

Len
"Engineering is an Art. The Art of Compromise."

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