GMS30C7201 Datasheet, PDF (179/352 Pages) Hynix Semiconductor – 60MHz operation frequency Low power consumption

Fast AMBA Peripherals
12.4 General Configuration
This section gives a programmer’s guide to operating the IrDA interface.
12.4.1 Select Ir Mode (SIr/MIr/FIr)
The IrEnable register selects which of the three Ir sub-modules is used to operate the IrDA
interface. Only one of the three may be active at any one time. The reset value for this register
is zero which disables all three encoder/decode modules. The bottom two bits of this register
select the encoder decoder module according to the tabulated values listed in Table 12-28: Bit
IrEnable
EN1
IrEnable
EN0
Encoder
selected
0
0
None
0
1
SIr
1
0
MIr
1
1
FIr
Table 12-28: Bit values to select Ir module
values to select Ir module
12.4.2 SIr Operation
SIr does not use the data transfer mechanism implemented for MIr and FIr described in this
section. After selecting SIr mode, all data transfer operations are made through UART 2 as if
connection is through a serial cable without handshake lines. For details of this operation see of
Chapter 13, 13.2.2 Features where operation of the UART is explained.
12.4.3 Select Data Rate
The data rates for MIr and FIr are as follows:
MIr
Clear BRD bit in IrCon for 0.576 Mbit/s
Set BRD bit in IrCon for 1.152 Mbit/s
FIr
Fixed at 4 Mbit/s
GMS30C7201 Data Sheet
12-25