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PC87393F 데이터시트(PDF) 104 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
부품명 PC87393F
상세설명  100-Pin LPC SuperI/O Devices for Portable Applications
PDF  148 Pages
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제조업체  NSC [National Semiconductor (TI)]
홈페이지  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87393F 데이터시트(HTML) 104 Page - National Semiconductor (TI)

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6.0 Musical Instrument Digital Interface (MIDI) Port (Continued)
104
www.national.com
6.3.6
MIDI Control Register (MCNTL)
This register controls enhanced MIDI functions.
Location:
Offset 02h
Type:
R/W
Bit
76543210
Name
Loopback
Mode
Enable
MIDI Thru
Enable
Reserved
Pass-Thru
Transmit
Enable
Rx Data
Ready
Interrupt
Enable
MDTX Pin
Masking
Enable
Tx Buffer
Empty
Interrupt
Enable
Rx FIFO
Enable for
Pass-Thru
Mode
Reset
00001001
Required
0
Bit
Description
7
Loopback Mode Enable. When enabled, the MIDI receive signal is internally connected to the MIDI transmit
signal.
0: Disabled (default)
1: Enabled
6
MIDI Thru Enable. When enabled, the MDRX pin is internally connected to the MDTX pin, which then reflects
the MIDI receive signal. When disabled, the MDTX pin is driven with data coming from the MIDI Port transmit
engine.
0: Disabled (default)
1: Enabled
5
Reserved. Must be 0.
4
Pass-Thru Transmit Enable. When enabled, data is transmitted in Pass-Thru (non-UART) mode.
0: Disabled (default)
1: Enabled
3
Rx Data Ready Interrupt Enable. When enabled, an interrupt request is asserted in response to a Receive
Data Ready event.
0: Disabled
1: Enabled (default)
2
MDTX Pin Masking Enable. When enabled, the MDTX pin is constantly driven high by the MIDI Port. When
disabled, MDTX serves as the MIDI Port transmit line.
0: Disabled (default)
1: Enabled
1
Tx Buffer Empty Interrupt Enable. When enabled, an interrupt request is asserted in response to a Transmit
Buffer Empty event.
0: Disabled (default)
1: Enabled
0
Rx FIFO Enable for Pass-Thru Mode. When this bit is set to 1, the Receive FIFO is enabled in Pass-Thru
mode. This bit is ignored in UART mode.
0: Disabled
1: Enabled (default)



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