RF60 Datasheet, PDF (112/157 Pages) –

RF60 CRYSTAL-LESS SOC TRANSMITTER v1.0
Digital logic
Wr: PORT_MATRIX
Wr: PORT_ROFF
PORT_STROBE
Rd: PORT_MATRIX
Rd: PORT_ROFF
gpio_in[n]
port_push_pull[n]
port_oe[n]
port_dataout[n]
gpio_push_pull[n]
gpio_dataout[n]
1
3
22
E
E
GPIO Pads
Vcc
~50k
GPIO[n]
Figure 29.2. GPIO[3:1] Functional Diagram
Functional diagram of the other GPIO ports is in Figure 29.3. Note that is the general GPIO circuit, which
can be forced by digital control to have limited functionality (for example, as input only, etc.).
Digital logic
GPIO Pads
port_push_pull[n]
port_oe[n]
port_dataout[n]
gpio_in[n]
gpio_push_pull[n]
gpio_dataout[n]
Vcc
~50k
GPIO[n]
Figure 29.3. Other GPIO Functional Diagram
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