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IRCC Datasheet(PDF) 24 Page - SMSC Corporation

Part # IRCC
Description  INFRARED COMMUNICATIONS CONTROLLER
PDF  79 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

IRCC Datasheet(HTML) 24 Page - SMSC Corporation

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REGISTERS
The IrCC is partially enabled through binary
controls found in two 8-byte register banks. The
banks, the ACE550 UART Controls and the SCE
Controls, are selected with the nACE and nSCE
register-bank selector inputs found in the
Interface Description.
If nACE is zero, the three least significant bits of
the Host Address Bus decode the 16550A UART
control registers.
If nSCE is zero, the SCE
control bank is addressed.
All of the IrCC
registers are 8 bits wide.
ACE UART CONTROLS
The table below (Table 12) lists the ACE UART
Control Registers (see the ACE UART section).
Table 12 - 16550A UART Addressing
DLAB
A2
A1
A0
DIRECTION
REGISTER NAME
0
0
0
0
Read
Receive Buffer
0
0
0
0
Write
Transmit Buffer
0
0
0
1
Read/Write
Interrupt Enable
X
0
1
0
Read
Interrupt Identification
X
0
1
0
Write
FIFO Control
X
0
1
1
Read/Write
Line Control
X
1
0
0
Read/Write
Modem Control
X
1
0
1
Read/Write
Line Status
X
1
1
0
Read/Write
Modem Status
X
1
1
1
Read/Write
Scratchpad
1
0
0
0
Read/Write
Divisor (LSB)
1
0
0
1
Read/Write
Divisor (MSB)



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