YMF724 ETC, YMF724 Datasheet - Page 9

• Manufacturer Part Number: YMF724
• Description: high performance audio controller for the PCI Bus
• Manufacturer: ETC

YMF724F
1. PCI INTERFACE
# #
1-1. PCI Bus Command
1-1-1. Target Device Mode
1-1-2. Master Device Mode
DS-1 supports the PCI bus interface and complies to PCI revision 2.1.
DS-1 supports the following PCI Bus commands.
DS-1 does not assert DEVSEL# when accessed with commands that are indicated as (not supported) or
reserved.
When DS-1 becomes a Master Device, it generates only memory write and read cycle commands.
FUNCTION OVERVIEW
C/BE[3:0]#
C/BE[3:0]#
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Command
Interrupt Acknowledge (not support)
Special Cycle (not support)
I/O Read
I/O Write
reserved
reserved
Memory Read
Memory Write
reserved
reserved
Configuration Read
Configuration Write
Memory Read Multiple (not support)
Dual Address Cycle (not support)
Memory Read Line (not support)
Memory Write and Invalidate (not support)
Command
Memory Read
Memory Write
-9-
January 14, 1999