III PERIPHERAL BLOCK: SERIAL INTERFACE

IRTL0: Ch.0 IrDA output logic inversion (D3) / Serial I/F Ch.0 IrDA register (0x401E4)

IRTL1: Ch.1 IrDA output logic inversion (D3) / Serial I/F Ch.1 IrDA register (0x401E9)

IRTL2: Ch.2 IrDA output logic inversion (D3) / Serial I/F Ch.2 IrDA register (0x401F4)

IRTL3: Ch.3 IrDA output logic inversion (D3) / Serial I/F Ch.3 IrDA register (0x401F9)

Inverts the logic of the IrDA output signal.

Write "1": Inverted

Write "0": Not inverted

Read: Valid

When using the IrDA interface, set the logic of the SOUTx output signal to suit the infrared-ray communication circuit that is connected external to the chip. If IRTLx is set to "1", a high pulse is output when the output data = "0" (held low-level when the output data = "1"). If IRTLx is set to "0", a low pulse is output when the output data = "0" (held high-level when the output data = "1").

At initial reset, IRTLx becomes indeterminate.

IRRL0: Ch.0 IrDA input logic inversion (D2) / Serial I/F Ch.0 IrDA register (0x401E4)

IRRL1: Ch.1 IrDA input logic inversion (D2) / Serial I/F Ch.1 IrDA register (0x401E9)

IRRL2: Ch.2 IrDA input logic inversion (D2) / Serial I/F Ch.2 IrDA register (0x401F4)

IRRL3: Ch.3 IrDA input logic inversion (D2) / Serial I/F Ch.3 IrDA register (0x401F9)

Inverts the logic of the IrDA input signal.

Write "1": Inverted

Write "0": Not inverted

Read: Valid

When using the IrDA interface, set the logic of the signal that is input from an external infrared-ray communication circuit to the chip to suit the serial interface. If IRRLx is set to "1", a high pulse is input as a logic "0". If IRRLx is set to "0", a low pulse is input as a logic "0".

At initial reset, IRRLx becomes indeterminate.

IRMD01–IRMD00: Ch.0 IrDA interface mode selection (D[1:0]) / Serial I/F Ch.0 IrDA register (0x401E4)

IRMD11–IRMD10: Ch.1 IrDA interface mode selection (D[1:0]) / Serial I/F Ch.1 IrDA register (0x401E9)

IRMD21–IRMD20: Ch.2 IrDA interface mode selection (D[1:0]) / Serial I/F Ch.2 IrDA register (0x401F4)

IRMD31–IRMD30: Ch.3 IrDA interface mode selection (D[1:0]) / Serial I/F Ch.3 IrDA register (0x401F9)

Selects the IrDA interface function.

Table 8.16 IrDA Interface Setting

IRMDx1

IRMDx0

Interface mode

1

1

Do not set. (reserved)

1

0

IrDA 1.0 interface

0

1

Do not set. (reserved)

0

0

Normal interface

When using the IrDA interface function, write "10" to IRMDx while setting to an asynchronous mode for the transfer mode. If the IrDA interface function is not to be used, write "00" to IRMDx.

At initial reset, IRMDx becomes indeterminate.

Note: This selection must always be performed before the transfer mode and other conditions are set.

PSIO02–PSIO00:Ch.0 interrupt level (D[6:4]) / 8-bit timer, serial I/F Ch.0 interrupt priority register (0x40269)

PSIO12–PSIO10:Ch.1 interrupt level (D[2:0]) / Serial I/F Ch.1, A/D interrupt priority register (0x4026A)

Sets the priority level of the serial-interface interrupt.

The interrupt priority level can be set for each channel in the range of 0 to 7.

At initial reset, PSIOx becomes indeterminate.

B-III-8-40

EPSON

S1C33210 FUNCTION PART