F81218
0Ah : use serial IRQ channel 10 in LPC mode or use ISA_IRQE in
ISA mode.
0Bh : use serial IRQ channel 11 in LPC mode or use ISA_IRQF in
ISA mode.
Otherwise will disable the interrupt.
6.5.5 UART 4 Clock Select Register – index F0h
Power-on default [7:0] = 0x00h.
Bit
7:5
Name
Reserved
R/W
R/W
R/W
Description
Return 0 when read.
4
RS485
0: The RTS# is controlled by programming MCR[1]. (offset +4)
1: The RTS# is drive high when transmitting data and sink low when
receiving data.
3:2
1:0
Reserved
R/W
R/W
Return 0 when read.
SELURCCLK1
SELURCCLK0
00 : UART 3 clock source is 1.8462MHz ( 24MHz/13 )
01/10/11 selection reserved.
6.6 UART 5 Device Control Register (LDN 4)
6.6.1 Device Enable Register – index 30h
Power-on default [7:0] = 0x01h when SOUT5/PS_338_IRQE is pull-up, else 0x00h.
Bit
7:1
Name
Reserved
URE_EN
R/W
R/W
R/W
Description
Return 0 when read.
0 : Disable UART 5.
1 : Enable UART 5.
0
6.6.2 I/O Port Select Register – index 60h
Power-on default [7:0] = 0x03h when SOUT5/PS_338_IRQE is pull-up, else 0x00h.
Bit Name R/W Description
7:0 URE_BASE[15:8] R/W UART 5 I/O Port Address high byte.
-34-
August, 2007
V0.33P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
