参数资料
型号: PC87393F-VJG
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 外设及接口
英文描述: 100-Pin LPC SuperI/O Devices for Portable Applications
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封装: TQFP-100
文件页数: 5/148页
文件大小: 1733K
代理商: PC87393F-VJG
6.0 Musical Instrument Digital Interface (MIDI) Port (Continued)
102
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6.3
MIDI PORT REGISTERS
The following abbreviations are used to indicate the Register Type:
q
R/W = Read/Write
q
R = Read from a specic address returns the value of a specic register. Write to the same address is to a different
register.
q
W=Write
q
RO = Read Only
q
R/W1C = Read/Write 1 to Clear. Writing 1 to a bit clears it to 0. Writing 0 has no effect.
6.3.1
MIDI Port Register Map
The following table lists the MIDI Port registers. For the MIDI Port register bitmap, see Section 6.4.
6.3.2
MIDI Data In Register (MDI)
This read register is used for reading data received by the MIDI Port, and status information returned by the MIDI Port in
response to a previously issued command. When the FIFOs of the MIDI Port are enabled, reading from this offset returns
the next byte taken out of the Receive FIFO.
Location:
Offset 00h
Type:
R
6.3.3
MIDI Data Out Register (MDO)
This write register is used for writing data to be transmitted by the MIDI Port. When the FIFOs of the MIDI Port are enabled,
writing to this offset puts the data byte into the Transmit FIFO.
Location:
Offset 00h
Type:
W
Offset
Mnemonic
Register Name
Type
Section
00h
MDI
MIDI Data In
R
00h
MDO
MIDI Data Out
W
01h
MSTAT
MIDI Status
R
01h
MCOM
MIDI Command
W
02h
MCNTL
MIDI Control
R/W
Bit
76543210
Name
Data In
Reset
XXXXXXXX
Bit
76543210
Name
Data Out
Reset
XXXXXXXX
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