F71869A
6.3
UART1 Registers (CR01)
6.3.1 UART 1 Device Enable Register ⎯ Index 30h
Bit
Name
R/W Default
Description
7-1
Reserved
-
-
Reserved
0: disable UART 1.
1: enable UART 1.
0
UR1_EN
R/W
1
6.3.2 Base Address High Register ⎯ Index 60h
Bit Name R/W Default
7-0 BASE_ADDR_HI R/W
Description
Description
Description
03h The MSB of UART 1 base address.
6.3.3 Base Address Low Register ⎯ Index 61h
Bit Name R/W Default
7-0 BASE_ADDR_LO R/W
F8h The LSB of UART 1 base address.
6.3.4 IRQ Channel Select Register ⎯ Index 70h
Bit
7-4
3-0
Name
R/W Default
Reserved
-
-
Reserved.
Select the IRQ channel for UART 1.
SELUR1IRQ
R/W
4h
6.3.5 RS485 Enable Register ⎯ Index F0h
Bit
7-6
5
Name
R/W Default
Description
Reserved
RS485_INV
-
-
-
-
Reserved.
Write “1” will invert the RTS# if RS485_EN is set.
0: RS232 driver.
4
RS485_EN
Reserved
R/W
-
0
-
1: RS485 driver. RTS# drive high when transmitting data, otherwise is
kept low.
3-0
Reserved.
67
Oct., 2011
V0.19P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
