F81867 Datasheet, PDF (198/315 Pages) Feature Integration Technology Inc. – 6 UARTs μSuper IO With 128 Bytes FIFO and Power Saving Functions

7.17 UART4 Registers (CR13)
“-“ Reserved or Tri-State
Register
0x[HEX]
30
Register Name
Device Enable Register
60
Base Address High Register
61
Base Address Low Register
70
IRQ Channel Select Register
F0
IRQ Share Register
F2
Clock Select Register
F4
9bit-mode Slave Address Register
F5
9bit-mode Slave Address Mask Register
F6
FIFO Mode Register
F81867
MSB
-
-
0
0
1
1
-
-
0
0
-
-
0
0
0
0
0
0
Default Value
LSB
-
-
-
-
-
1
0
0
0
0
1
0
1
0
1
0
0
0
-
-
0
0
1
1
0
0
-
-
00
-
-
-
-
00
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-
0
0
UART 4 Device Enable Register ⎯ Index 30h
Bit
Name
R/W Reset Default
Description
7-1
Reserved
-
-
- Reserved
0: disable UART 4 I/O Port.
0
UART4_EN
R/W LRESET# 1
1: enable UART 4 I/O Port.
Base Address High Register ⎯ Index 60h
Bit
Name
R/W Reset Default
Description
7-0 BASE_ADDR_HI R/W LRESET# 03h The MSB of UART 4 base address.
Base Address Low Register ⎯ Index 61h
Bit
Name
R/W Reset Default
Description
7-0 BASE_ADDR_LO R/W LRESET# E8h The LSB of UART 4 base address.
IRQ Channel Select Register ⎯ Index 70h
Bit
Name
R/W Reset Default
Description
7-4
Reserved
-
-
- Reserved.
3-0 SELUART4IRQ R/W LRESET# 3h Select the IRQ channel for UART 4.
IRQ Share Register ⎯ Index F0h
Bit
Name
R/W Reset Default
Description
0: normal UART function
7
9BIT_MODE
R/W LRESET# 0 ^{1: enable 9-bit mode (multi-drop mode).}
In the 9-bit mode, the parity bit becomes the address/data bit.
This bit works only in 9-bit mode.
0: the SM2 bit will be cleared by host, so that data could be received.
6
AUTO_ADDR
R/W LRESET# 0 _{1: the SM2 bit will be cleared by hardware according to the sent address and}
the given address (or broadcast address derived by SADDR and SADEN)
198
Dec, 2011
V0.12P