YMF754-V ETC, YMF754-V Datasheet - Page 40
![no-image](/images/no-image-200.jpg)
YMF754-V
Manufacturer Part Number
YMF754-V
Description
DS-1E
Manufacturer
ETC
Datasheet
1.YMF754-V.pdf
(60 pages)
- Current page: 40 of 60
- Download datasheet (306Kb)
YMF754
F1h: Scan In/ Out Data
F2h: Current FM Synthesizer Index
F3h: Current FM Synthesizer Array
F4h: FM Synthesizer / MPU401 Status
b[7:0] ..........SCAN DATA
b[7:0] ..........Current FM Synthesizer Index
b0................CFA: Current FM Synthesizer Arary
b0................MPUS: MPU401 Status
b6................FFFUL: FM Synthesizer FIFO Full
FFEMP FFFUL
This is the data port for reading and writing the internal state.
This register indicates current index of the FM Synthesizer.
This bit indicates that the FM Synthesizer array is being currently set to Array 0 or 1.
This bit indicates current MPU401 status.
This bit indicates whether or not FIFO followed by the FM Synthesizer is full.
b7
b7
b7
b7
“0”: Array 0
“1”: Array 1
“0”: Default mode (Intelligent mode)
“1”: UART mode
“0”: not Full
“1”: Full
-
Read / Write
Default: 00h
Read Only
Default: 00h
Read Only
Default: 00h
Read Only
Default: 80h
b6
b6
b6
b6
-
Current FM Synthesizer Index
b5
b5
b5
b5
-
-
SCAN DATA
b4
b4
b4
b4
(default)
(default)
-
-
b3
b3
b3
b3
-
-
b2
b2
b2
b2
-
-
(default)
-40-
b1
b1
b1
b1
-
-
MPUS
CFA
b0
b0
b0
b0
June 28, 1999
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