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LAN9312 Datasheet(PDF) 266 Page - SMSC Corporation

Part # LAN9312
Description  High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
PDF  458 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

LAN9312 Datasheet(HTML) 266 Page - SMSC Corporation

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High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
Revision 1.2 (04-08-08)
266
SMSC LAN9312
DATASHEET
14.2.9.5
General Purpose Timer Configuration Register (GPT_CFG)
This read/write register configures the LAN9312 General Purpose Timer (GPT). The GPT can be
configured to generate host interrupts at the interval defined in this register. The current value of the
GPT can be monitored via the General Purpose Timer Count Register (GPT_CNT). Refer to Section
12.1, "General Purpose Timer," on page 161 for additional information.
Offset:
08Ch
Size:
32 bits
BITS
DESCRIPTION
TYPE
DEFAULT
31:30
RESERVED
RO
-
29
General Purpose Timer Enable (TIMER_EN)
This bit enables the GPT. When set, the GPT enters the run state. When
cleared, the GPT is halted. On the 1 to 0 transition of this bit, the
GPT_LOAD field of this register will be preset to FFFFh.
0: GPT Disabled
1: GPT Enabled
R/W
0b
28:16
RESERVED
RO
-
15:0
General Purpose TImer Pre-Load (GPT_LOAD)
This value is pre-loaded into the GPT. This is the starting value of the GPT.
The timer will begin decrementing from this value when enabled.
R/W
FFFFh



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