F71862
8.4UART 2 Registers (CR02)
8.4.1
UART 2 Device Enable Register Index 30h
Bit Name R/W Default
UART 2 Configuration Registers
Description
7-1 Reserved
UR2_EN
-
-
Reserved
0
R/W
1
0: disable UART 2.
1: enable UART 2.
Base Address High Register Index 60h
Bit Name R/W Default
Description
7-0 BASE_ADDR_HI
R/W
02h The MSB of UART 2 base address.
Base Address Low Register Index 61h
Bit Name R/W Default
Description
7-0 BASE_ADDR_LO
R/W
F8h The LSB of UART 2 base address.
IRQ Channel Select Register Index 70h
Bit Name R/W Default
Description
7-4 Reserved
-
-
Reserved.
Select the IRQ channel for UART 2.
3-0 SELUR2IRQ
R/W
3h
RS485 Enable Register Index F0h
Bit Name R/W Default
Description
7-5 Reserved
-
-
Reserved.
4
3
2
RS485_EN
RXW4C_IR
TXW4C_IR
R/W
0
0: RS232 driver.
1: RS485 driver. Auto drive RTS# low when transmitting data.
R/W
R/W
-
0
0
-
0: No reception delay when SIR is changed form TX to RX.
1: Reception delays 4 characters time when SIR is changed form TX to RX.
0: No transmission delay when SIR is changed form RX to TX.
1: Transmission delays 4 characters time when SIR is changed form RX to TX.
1-0 Reserved
Reserved.
SIR Mode Control Register Index F1h
Bit
Name
R/W Default
Description
7
6
5
Reserved
-
-
-
Reserved.
Reserved.
Reserved.
Reserved
Reserved
-
-
-
4-3 IRMODE
R/W
00
00: disable IR function.
01: disable IR function.
10: IrDA function, active pulse is 1.6uS.
11: IrDA function, active pulse is 3/16 bit time.
80
July, 2008
V.28P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
