Dual Serial SIO
This card uses the Zilog SIO (Serial I/O) to comunicate via serial interface. It offers two different serial channels: PORT A is the main serial and it's generally used to the terminal access. PORT B is a secondary port and can be used as a "modem" for communicating with the outside world.
Dual Serial SIO/2 Rev.0
Settings SIO/2 REV.0
| PORT_A / PORT_B | ||
|---|---|---|
| pin1 | gnd | |
| pin2 | rts_x | |
| pin3 | vcc | |
| pin4 | rx_x | |
| pin5 | tx_x | |
| pin6 | - | |
| CLK INPUT | ||
| PORT_A_CLK | turn on CLK1 input | |
| PORT_B_CLK | use same clk on both PORTS A and B | |
Dual Serial SIO/2 Rev.1
Settings SIO/2 REV.1
| PORT_A / PORT_B | ||
|---|---|---|
| pin1 | gnd | |
| pin2 | rts_x | |
| pin3 | vcc | |
| pin4 | rx_x | |
| pin5 | tx_x | |
| pin6 | - | |
| CLK INPUT | ||
| CLK1 | enable CLK1 input | |
| CLK2 | enable CLK2 input | |
| CLK_A_EQ_B | use same clk on PORTS A and B | |
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