LAN9303MI-AKZE Datasheet, PDF (199/386 Pages) SMSC Corporation – Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII

Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII
Datasheet
13.2.7.4 General Purpose Timer Configuration Register (GPT_CFG)
Offset:
08Ch
Size:
32 bits
This read/write register configures the 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 11.1, "General
Purpose Timer," on page 143 for additional information.
BITS
DESCRIPTION
31:30 RESERVED
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
28:16 RESERVED
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.
TYPE
RO
R/W
RO
R/W
DEFAULT
-
0b
-
FFFFh
SMSC LAN9303M/LAN9303Mi
199
DATASHEET
Revision 1.5 (07-08-11)