参数资料
型号: TSPC106AMGSU66CE
厂商: ATMEL CORP
元件分类: 总线控制器
英文描述: PCI BUS CONTROLLER, CBGA303
封装: 21 X 25 MM, 3.84 MM HEIGHT, 1.27 MM PITCH, CICGA-303
文件页数: 2/40页
文件大小: 569K
代理商: TSPC106AMGSU66CE
10
TSPC106
2102B–HIREL–02/02
60x Processor Interface Signals
Table 2. 60x Processor Interface Signals
Signal
Signal Name
Number of
Pins
I/O
Signal Description
A[0:31]
Address bus
32
O
Specifies the physical address for 60x bus snooping.
I
Specifies the physical address of the bus transaction. For burst reads,
the address is aligned to the critical double-word address that missed
in the instruction or data cache. For burst writes, the address is aligned
to the double-word address of the cache line being pushed from the
data cache.
AACK
Address
acknowledge
1
O
Indicates that the address tenure of a transaction is terminated. On the
cycle following the assertion of AACK, the bus master releases the
address-tenure-related signals to a high impedance state and samples
ARTRY.
I
Indicates that an externally-controlled L2 cache is terminating the
address tenure. On the cycle following the assertion of AACK,the bus
master releases the address-tenure-related signals to a high
impedance state and samples ARTRY.
ARTRY
Address retry
1
O
Indicates that the initiating 60x bus master must retry the current
address tenure.
I
During a snoop operation, indicates that the 60x either requires the
current address tenure to be retried due to a pipeline collision or needs
to perform a snoop copy-back operation. During normal 60x bus cycles
in a multiprocessor system, indicates that the other 60x or external L2
controller requires the address tenure to be retried.
BG0
Bus grant 0
1
O
Indicates that the primary 60x may, with the proper qualification, begin
a bus transaction and assume mastership of the address bus.
BR0
Bus request 0
1
I
Indicates that the primary 60x requires the bus for a transaction.
CI
Cache inhibit
1
I/O
Indicates that an access is caching-inhibited.
DBG0
Data bus grant 0
1
O
Indicates that the 60x may, with the proper qualification, assume
mastership of the data bus.
DBGLB
Local bus slave
data bus grant
1
O
Indicates that the 60x processor is prepared to accept data and the
local bus slave should drive the data bus.
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