参数资料
型号: YMF740C
厂商: Electronic Theatre Controls, Inc.
英文描述: DS-1L
中文描述: 的DS - 1公升
文件页数: 42/44页
文件大小: 224K
代理商: YMF740C
YMF740C
January 14, 1999
-7-
FUNCTION OVERVIEW
1. PCI INTERFACE
DS-1L supports the PCI bus interface and complies to PCI revision 2.1.
1-1. PCI Bus Command
DS-1L 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 (not support)
1101
Dual Address Cycle (not support)
1110
Memory Read Line (not support)
1111
Memory Write and Invalidate (not support)
DS-1L 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-1L becomes a Master Device, it generates only memory write and read cycle commands.
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