参数资料
型号: YMF754-V
厂商: Yamaha Corporation
英文描述: DS-1E
中文描述: 副秘书长至1E
文件页数: 60/60页
文件大小: 305K
代理商: YMF754-V
YMF754
June 28, 1999
-9-
FUNCTION OVERVIEW
1. PCI INTERFACE
DS-1E supports the PCI bus interface and complies to PCI revision 2.2.
1-1. PCI Bus Command
DS-1E supports the following PCI Bus commands.
1-1-1. Target Device Mode
C/BE[3:0]#
Command
0000
Interrupt Acknowledge (not support)
0001
Special Cycle (not support)
0010
I/O Read
0011
I/O Write
0100
reserved
0101
reserved
0110
Memory Read
0111
Memory Write
1000
reserved
1001
reserved
1010
Configuration Read
1011
Configuration Write
1100
Memory Read Multiple (alias to memory read)
1101
Dual Address Cycle (not support)
1110
Memory Read Line (alias to memory read)
1111
Memory Write and Invalidate (alias to memory write)
DS-1E does not assert DEVSEL# when accessed with commands that are indicated as (not supported) or
reserved.
1-1-2. Master Device Mode
C/BE[3:0]#
Command
0110
Memory Read
0111
Memory Write
When DS-1E becomes a Master Device, it generates only memory write and read cycle commands.
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