参数资料
型号: YMF744B
厂商: Electronic Theatre Controls, Inc.
英文描述: DS-1S
中文描述: 的DS - 1秒
文件页数: 36/60页
文件大小: 303K
代理商: YMF744B
YMF744B
February 3, 1999
-41-
F1h: Scan In/ Out Data
Read / Write
Default: 00h
b7
b6
b5
b4
b3
b2
b1
b0
SCAN DATA
b[7:0] ..........SCAN DATA
This is the data port for reading and writing the internal state.
F2h: Current FM Synthesizer Index
Read Only
Default: 00h
b7
b6
b5
b4
b3
b2
b1
b0
Current FM Synthesizer Index
b[7:0] ..........Current FM Synthesizer Index
This register indicates current index of the FM Synthesizer.
F3h: Current FM Synthesizer Array
Read Only
Default: 00h
b7
B6
b5
b4
b3
b2
b1
b0
-
CFA
b0................CFA: Current FM Synthesizer Arary
This bit indicates that the FM Synthesizer array is being currently set to Array 0 or 1.
“0”: Array 0
(default)
“1”: Array 1
F4h: FM Synthesizer / MPU401 Status
Read Only
Default: 80h
b7
b6
b5
b4
b3
b2
b1
b0
FFEMP FFFUL
-
MPUS
b0................MPUS: MPU401 Status
This bit indicates current MPU401 status.
“0”: Default mode (Intelligent mode)
(default)
“1”: UART mode
b6................FFFUL: FM Synthesizer FIFO Full
This bit indicates whether or not FIFO followed by the FM Synthesizer is full.
“0”: not Full
(default)
“1”: Full
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