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
38
Table 10–5: Interface Information Register 1 Description
Bit
Symbol
Description
7
IIR1[7]
Hardwired to ‘0’
6:4
IIR1[6:4]
Interface Type Indicator: This interface information is set by INTF1[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 2
nd
serial port, 4
th
serial port and 6
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
IIR1[3:0]
Reserved. Hardwired to 0000b.
Table 10–6: Interface Information Register 1 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 2
nd
serial port in 4S and 6S ALL
mode.
It receives interface setting value
for 4
th
serial port in 4S and 6S ALL
mode.
It receives interface setting value
for 6
th
serial port in 6S ALL mode.
Figure 10–2: Selecting Interface Information, INTF1[2:0] using GPO[1:0]
M
U
X
GPO[1:0]
INTF1[2:0]
Interface Setting of the 2
nd
Serial Port
Interface Setting of the 4
th
Serial Port
Interface Setting of the 6
th
Serial Port
SB16C1053APCI