LPC47M182-NR SMSC [SMSC Corporation], LPC47M182-NR Datasheet - Page 189
LPC47M182-NR
Manufacturer Part Number
LPC47M182-NR
Description
ADVANCED I/O CONTROLLER WITH MOTHERBOARD GLUE LOGIC
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.LPC47M182-NR.pdf
(223 pages)
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Advanced I/O Controller with Motherboard GLUE Logic
Datasheet
Note 1: To properly share and IRQ,
Note: If both UARTs are configured to use different IRQs and the share IRQ bit is set, then both of the UART IRQs
will assert when either UART generates an interrupt.
SMSC LPC47M182
1. Configure UART1 (or UART2) to use the desired IRQ.
2. Configure UART2 (or UART1) to use No IRQ selected.
3. Set the share IRQ bit.
Serial Port 1 Mode
Register
Default = 0x00
on VCC POR,
VTR POR and
HARD RESET
NAME
Table 11.12 – Serial Port 1 Logical Device Configuration Registers
0xF0 R/W
INDEX
REG
DATASHEET
Bit[0] MIDI Mode
= 0
= 1
Bit[1] High Speed
= 0
= 1
Bit[6:2] Reserved, set to zero
Bit[7] Share IRQ
=0 UARTS use different IRQs
=1 UARTS share a common IRQ
See Note 1 below.
189
MIDI support disabled (default)
MIDI support enabled
High Speed Disabled(default)
High Speed Enabled
DEFINITION
Revision 1.8 SMSC/Non-SMSC Register Sets (02-24-05)
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