YMF754-V ETC, YMF754-V Datasheet - Page 21
YMF754-V
Manufacturer Part Number
YMF754-V
Description
DS-1E
Manufacturer
ETC
Datasheet
1.YMF754-V.pdf
(60 pages)
- Current page: 21 of 60
- Download datasheet (306Kb)
YMF754
44-45h: Subsystem Vendor ID Write
46-47h: Subsystem ID Write
48-49h: DS-1E Control
b[15:0] ........Subsystem Vendor ID Write
b[15:0] ........Subsystem ID Write
b0................CRST: AC’97 Software Reset Signal Control
This register sets the Subsystem Vendor ID that is read from 2C-2Dh (Subsystem Vendor ID register).
The default value is the YAMAHA Vendor ID, 1073h. IHVs must change this ID to their Vendor ID in
the BIOS POST routine.
In case EEPROM connects externally, this register is invalid, and do not reflect to Subsystem Vendor ID.
This register sets the Subsystem ID that is read from 2E-2Fh (Subsystem ID register).
The default value is the DS-1E Device ID, 0012h. IHVs must change this ID to their ID in the BIOS
POST routine.
In case EEPROM connects externally, this register is invalid, and do not reflect to Subsystem ID.
This bit controls the CRST# signal.
b15
b15
b15
“0”: Inactive (CRST#=High)
“1”: Active (CRST#=Low)
-
Read / Write
Default: 1073h
Access Bus Width: 16-bit
Read / Write
Default: 0012h
Access Bus Width: 16-bit
Read / Write
Default: 0001h
Access Bus Width: 8, 16, 32-bit
b14
b14
b14
-
b13
b13
b13
-
b12
b12
b12
-
b11
b11
b11
-
(default)
b10
b10
b10
-
Subsystem Vendor ID Write
b9
b9
b9
-
Subsystem ID Write
-21-
b8
b8
b8
-
b7
b7
b7
-
b6
b6
b6
-
b5
b5
b5
-
b4
b4
b4
-
ACLS WRST
b3
b3
b3
June 28, 1999
b2
b2
b2
b1
b1
b1
-
CRST
b0
b0
b0
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