SCxRDR
char c = sci_serial_in(port, SCxRDR);
c = sci_serial_in(port, SCxRDR);
c = sci_serial_in(port, SCxRDR);
sci_serial_in(port, SCxRDR);
(sci_getreg(port, SCxRDR)->offset << port->regshift);
sci_serial_in(port, SCxRDR);
[SCxRDR] = { 0x05, 8 },
[SCxRDR] = { 0x0a, 8 },
[SCxRDR] = { 0x24, 8 },
[SCxRDR] = { 0x60, 8 },
[SCxRDR] = { 0x14, 8 },
[SCxRDR] = { 0x0A, 8 },
[SCxRDR] = { 0x0a, 8 },
[SCxRDR] = { 0x0a, 8 },
[SCxRDR] = { 0x14, 8 },
[SCxRDR] = { 0x14, 8 },
[SCxRDR] = { 0x14, 8 },
[SCxRDR] = { 0x14, 8 },
[SCxRDR] = { 0x14, 8 },
[SCxRDR] = { 0x24, 8 },
c = sci_serial_in(port, SCxRDR);