Pins of MC13192 for SMAC

[facundomaldonad]

The MC13192 transceiver can be used for ZigBee, MAC and SMAC. I want to know what pins (from the MC13192) I have to conect to a MCU if a want to use SMAC (I asume that SMAC requires less pins that ZigBee):

SPICLK (External clock SPI): Needed
MOSI (Master output / slave input SPI): Needed
MISO (Master input / slave output SPI): Needed
/CE (Chip enable): Needed
/IRQ: Needed

/RST (Reset): Needed or Optional?
RXTXEN (Enable Rx Tx):Optional?
/ATTN (Attention): Optional?

CLKO (Clock output): Optional?
GPIO2 (Entrada/salida): Not needed or Optional?
GPIO1 (Entrada/salida): Not needed or Optional?

[RichTestardi]

I think you've got it right for the "Needed" pins, but I have to admit I'm not actually using SMAC (and I'm using an MC13201).  The other pins allow you to implement lower power modes under MCU control.  RST* allows you to shut the transceiver off and RXTXEN allows you to go to idle mode.  ATTN* allows you to wake the transceiver from doze or hibernate mode.  Since I have a limited number of pins, I chose just your "Needed" pins, plus RST* and RXTXEN (and gave up doze/hibernate in favor of off/idle) -- we'll see if it works next week! :smileyhappy:

-- Rich