Cirrus-logic EP93xx Instrukcja Użytkownika Strona 619

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DS785UM1 17-23
Copyright 2007 Cirrus Logic
IrDA
EP93xx User’s Guide
1
7
1
7
17.6 Registers
Register Descriptions
IrEnable
Address:
0x808B_0000 - Read/Write
Default:
0x0000_0018
Definition:
IrDA Enable Register. This register selects which Infrared interface module is
active. The Medium and Fast modules share common control, flag, and data
interfaces while maintaining separate status registers.
Bit Descriptions:
RSVD: Reserved. Unknown During Read.
FD: Fast done status. Read-only bit indicating that the FIR
transmit module has completed transition of the current
frame and that it is safe to disable the module using the
EN control bits.
MD: Medium done status. Read-only bit indicating that the MIR
transmit module has completed transmission of the current
frame and that it is safe to disable the module using the
EN control bits.
LBM: Loopback Mode, for MIR and FIR operation.
0 - Normal operation.
1 - Loopback active, the transmit serial shifter is directly
connected to the receive serial shifter.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
RSVD
1514131211109876543210
RSVD FD MD LBM EN
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