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
36
10.1 General Information Register 0 Serial Port Number (GIR0, BAR4+0h)
Serial Port Number: Shows how many ports are installed on current Serial Multi-Port.
1S mode has 01h(1 port). 2S and 2S1P mode have 02h(2 ports). 4S mode have 04h (4 ports). 6S
mode have 06h (6 ports). Other mode except upper cases have 00h.
10.2 General Information Register 1 Product Version (GIR1, BAR4+1h)
General Information Register1 indicates the version of PCI Target Controller.
GIR1 is C0h Currently and meaning ver. 12.0
10.3 General Information Register 2 Parallel Port Number (GIR2, BAR4+2h)
General Information Register2 indicates the number of operational parallel port in SB16C1053APCI.
In case of 1P and 2S1P mode, it have 01h. It means SB16C1053APCI have one active parallel port.
In other case, it have 00h. It means SB16C1053APCI have none active parallel port.
10.4 General Information Register 3 Core Version (GIR3, BAR4+3h)
General Information Register3 indicates SystemBases PCI Core version (Currently 24h meaning 2.4)
10.5 Software Reset Register (SRR, BAR4+3h)
If 52h(“R”) is written on SRR, Reset is outputted to Serial Multi-Port I/O Bus and this means PCI UART
goes to Reset state. If values other than 52h are written on SRR, Reset state is cleared.
10.6 Device Information Register (DIR, BAR4+4h)
DIR: Device information of Port1 ~ Port2
Table 102: Device Information Register Description
Bit
Symbol
Description
7:4
DIR[7:4]
UART Select: Content of U[2:0] shows type of UART.
0000b: 16C550 compatible UART (not supported any more)
0001b: 16C1050 compatible UART (not supported any more)
0010b: 16C1050A (9-bit and Enhanced Auto Toggle)
0011 ~ 1111b: Reserved
3:0
DIR[3:0]
Oscillator Frequency Select: O[3:0] shows frequency (max.
communication speed) of clock source that is used.
0000b: 1.8432MHz (up to 115.2Kbps)
0001b: 3.6864MHz (up to 230.4Kbps)
0010b: 7.3728MHz (up to 460.8Kbps)
0011b: 14.7456MHz (up to 921.6Kbps)
0100b: 29.4912MHz (up to 1,8432Mbps)
0101 ~ 1111b: Reserved