DataSheet_SB16C1053APCI_v106

SB16C1053APCI
PCI Target Controller with 2 Serial, 1 Parallel and MIO Bus
PCI to 2S+1P with MIO Bus Bridge
JULY 2013 REV 1.06
37
10.7 Interface Information Register 0, 1 (IIR0, BAR4+8h/ IIR1, BAR4+9h)
IIR0 indicates interface information of serial ports in the Serial 1-port, Serial 2-port, Serial 4-port and
Serial 6-port modes. In these modes, IIR1 is not used.
In Serial 1-port and Serial 2-port ALL mode, IIR0 indicates interface information of 1
st
Serial port and
IIR1 indicates interface information of 2
nd
Serial port.
Table 10–3: Interface Information Register 0 Description
Bit
Symbol
Description
7
IIR0[7]
Hardwired to ‘0’
6:4
IIR0[6:4]
Interface Type Indicator: This interface information is set by INTF0[2:0] inputs.
000b: RS232 interface is selected.
100b: RS422 1:1 interface is selected.
101b: RS422 Multi-Drop interface is selected.
110b: RS485 Non-Echo interface is selected.
111b: RS485 Echo interface is selected.
These fields indicate the interface type of all serial ports in the Serial 1-port, Serial 2-port,
Serial 4-port and Serial 6-port normal modes.
But they indicate the interface type of 1
st
serial port, 3
rd
serial port and 5
th
serial port in the
Serial 1-port and Serial 2-port, Serial 4-port and Serial 6-port ALL modes by GPO[1:0].
This field is changed by GPO[1:0] control output values. Please refer the below Table.
3:0
IIR0[3:0]
Reserved. Hardwired to 0000b.
Table 10–4: Interface Information Register 0 in 4S and 6S ALL mode.
GPO[1:0] = 00b & 11b
GPO[1:0] = 01b
GPO[1:0] = 10b
It receives interface setting value
for 1
st
serial port in 4S and 6S ALL
mode.
It receives interface setting value
for 3
rd
serial port in 4S and 6S ALL
mode.
It receives interface setting value
for 5
th
serial port in 6S ALL mode.
Figure 10–1: Selecting Interface Information, INTF0[2:0] using GPO[1:0]
M
U
X
GPO[1:0]
INTF0[2:0]
Interface Setting of the 1
st
Serial Port
Interface Setting of the 3
rd
Serial Port
Interface Setting of the 5
th
Serial Port
SB16C1053APCI