82598EB Datasheet, PDF (304/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - Register Descriptions
4.4.3.1.7 TCP_Timer - TCPTIMER (0x0004C, RW)
Field
Duration
Bit(s)
7:0
Initial
Value
0x0
Description
Duration
Duration of the TCP interrupt interval in ms.
KickStart
8
0b
Counter Kick-Start
Writing 1b to this bit kick-starts the counter down-count from the initial value
defined in Duration field. Writing 0b has no effect (WS).
TCPCountEn
9
0b
TCPCountFinish
10
0b
Loop
11
0b
TCP Count Enable
When 1b, TCP timer counting is enabled. When 0b, it is disabled.
Upon enabling, TCP counter counts from its internal state. If the internal state is
equal to zero, down-count does not restart until KickStart is activated. If the
internal state is not 0b, down-count continues from the internal state. This
enables a pause of the counting for debug purpose.
TCP Count Finish
This bit enables software to trigger a TCP timer interrupt, regardless of the
internal state.
Writing 1b to this bit triggers an interrupt and resets the internal counter to its
initial value. Down-count does not restart until either KickStart is activated or
Loop is set.
Writing 0b to this bit has no effect (WS).
TCP Loop
When 1b, TCP counter reloads duration each time it reaches zero and goes on
down-counting from this point without kick-starting.
When 0b, TCP counter stops at a zero value and does not re-start until KickStart is
activated.
Reserved
31:12
0x0
Reserved
4.4.3.2 EEPROM/Flash Registers
4.4.3.2.1 EEPROM/Flash Control Register – EEC (0x10010; RW)
Field
EE_SK
EE_CS
EE_DI
Bit(s)
Initial
Value
0
0b
1
0b
2
0b
Description
Clock input to the EEPROM
When EE_GNT is set to 1b, the EE_SK output signal is mapped to this bit and
provides the serial clock input to the EEPROM. Software clocks the EEPROM via
toggling this bit with successive writes.
Chip select input to the EEPROM
When EE_GNT is set to 1b, the EE_CS output signal is mapped to the chip select
of the EEPROM device.
Data input to the EEPROM
When EE_GNT is set to 1b, the EE_DI output signal is mapped directly to this
bit. Software provides data input to the EEPROM via writes to this bit.
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