5. Configuration Registers
86
Tsi310 User Manual
80B6020_MA001_05
5.4.15
Subordinate Bus Number Register
The subordinate bus number register records the bus number of the highest numbered PCI bus
segment which is behind (or subordinate to) the bridge. The configuration software programs
the value in this register. The bridge uses this register in conjunction with the secondary bus
number register to determine when to respond to a Type 1 configuration transaction on the
primary interface and pass it to the secondary interface. The bridge also uses the secondary bus
number register and the subordinate bus number register to determine when to forward Type 1
configuration transactions upstream.
Address Offset
x‘1A’
Access
Read/Write
Reset Value
x‘00’
Subordinate Bus Number
7
6
5
4
3
2
1
0
Bit(s)
Access
Field Name and Description
7:0
RW
Software sets this register to the bus number of the highest numbered bus segment behind (or
subordinate to) the bridge.
Содержание Tsi310TM
Страница 8: ...Contents 8 Tsi310 User Manual 80B6020_MA001_05...
Страница 10: ...List of Figures 10 Tsi310 User Manual 80B6020_MA001_05...
Страница 12: ...List of Tables 12 Tsi310 User Manual 80B6020_MA001_05...
Страница 18: ...18 Tsi310 User Manual 80B6020_MA001_05...
Страница 44: ...2 Bus Operation 44 Tsi310 User Manual 80B6020_MA001_05...
Страница 58: ...3 Clocking and Reset Options 58 Tsi310 User Manual 80B6020_MA001_05...
Страница 62: ...4 Transaction Ordering 62 Tsi310 User Manual 80B6020_MA001_05...
Страница 150: ...5 Configuration Registers 150 Tsi310 User Manual 80B6020_MA001_05...
Страница 170: ...6 Signals and Pinout 170 Tsi310 User Manual 80B6020_MA001_05...
Страница 190: ...7 JTAG Boundary Scan 190 Tsi310 User Manual 80B6020_MA001_05...
Страница 196: ...8 Electrical Characteristics 196 Tsi310 User Manual 80B6020_MA001_05...
Страница 200: ...9 Package Information 200 Tsi310 User Manual 80B6020_MA001_05...
Страница 202: ...A Ordering Information 202 Tsi310 User Manual 80B6020_MA001_05...
Страница 206: ...Index 206 Tsi310 User Manual 80B6020_MA001_05...