dp83630sqx National Semiconductor Corporation, dp83630sqx Datasheet - Page 13

• Manufacturer Part Number: dp83630sqx
• Description: Precision Phyter - Ieee 1588 Precision Time Protocol Transceiver
• Manufacturer: National Semiconductor Corporation

LED_LINK
LED_SPEED
LED_ACT
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
GPIO10
GPIO11
GPIO12
TCK
TDO
TMS
TRST#
TDI
8.4 LED INTERFACE
The DP83630 supports three configurable LED pins. The
LEDs support two operational modes which are selected by
8.5 IEEE 1588 EVENT/TRIGGER/CLOCK INTERFACE
8.6 JTAG INTERFACE
Signal Name
Signal Name
Signal Name
LED_LINK
LED_SPEED/
FX_SD
LED_ACT
GPIO1
GPIO2
GPIO3
GPIO4
LED_ACT
LED_SPEED/
FX_SD
LED_LINK
GPIO8
GPIO9
TDO
TDI
CLK_OUT
TCK
TDO
TMS
TRST#
TDI
Pin Name
Pin Name
Pin Name
S, O, PU
S, O, PU
S, O, PU
I/O, PD
I/O, PU
I/O, PD
I/O, PU
I/O, PD
Type
Type
Type
I, PU
I, PU
I, PU
I, PU
O
Pin #
Pin #
Pin #
28
27
26
21
22
23
25
26
27
28
36
37
12
24
10
11
12
9
8
9
LINK LED: In Mode 1, this pin indicates the status of the LINK. The LED
will be ON when Link is good.
LINK/ACT LED: In Mode 2 and Mode 3, this pin indicates transmit and
receive activity in addition to the status of the Link. The LED will be ON
when Link is good. It will blink when the transmitter or receiver is active.
SPEED LED: The LED is ON when device is in 100 Mb/s and OFF when
in 10 Mb/s. Functionality of this LED is independent of mode selected.
ACTIVITY LED: In Mode 1, this pin is the Activity LED which is ON when
activity is present on either Transmit or Receive.
COLLISION/DUPLEX LED: In Mode 2, this pin by default indicates
Collision detection. In Mode 3, this LED output indicates Full-Duplex
status.
General Purpose I/O: These pins may be used to signal or detect events.
General Purpose I/O: These pins may be used to signal or detect events.
Care should be taken when designing systems that use LEDs but use
these pins as GPIOs. To disable the LED functions, refer to
LED Direct Control Register
General Purpose I/O: These pins may be used to signal or detect events.
General Purpose I/O: These pins may be used to signal or detect events.
Care should be taken when designing systems that use the JTAG
interface but use these pins as GPIOs.
General Purpose I/O: This pin may be used to signal or detect events or
may output a programmable clock signal synchronized to the internal
IEEE 1588 clock or may be used as an input for an externally generated
IEEE 1588 reference clock. If the system does not require the CLK_OUT
signal, the CLK_OUT output should be disabled via the CLK_OUT_EN
strap.
TEST CLOCK
This pin has a weak internal pullup.
TEST OUTPUT
TEST MODE SELECT
This pin has a weak internal pullup.
TEST RESET: Active low test reset.
This pin has a weak internal pullup.
TEST DATA INPUT
This pin has a weak internal pullup.
13
the LED mode strap and a third operational mode which is
register configurable. The definitions for the LEDs for each
mode are detailed below.
(LEDCR).
Description
Description
Description
Section 14.2.5
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