Led Mode Select; Led Behavior; Table 3.27 Led Mode Select, Address 29 (0X1D); Table 3.28 Led Behavior, Address 30 (0X1E) - Renesas R-IN32M4-CL2 User Manual
Gigabit ethernet phy edition
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R-IN32M4-CL2 User's Manual Gigabit Ethernet PHY Edition
3.2.24
LED Mode Select
The device LED outputs are controlled using the bits in register 29 of the main register space. The following table
shows the information needed to access the functionality of each of the outputs. For more information about LED modes,
see Table 2.
Table 3.27 LED Mode Select, Address 29 (0x1D)
Bit
Name
15:12
LED3 mode select
11:8
LED2 mode select
7:4
LED1 mode select
3:0
LED0 mode select
3.2.25
LED Behavior
The bits in register 30 control and enable you to read the status of the pulse or blink rate of the device LEDs. The
following table shows the settings you can write to the register or read from the register.
Table 3.28 LED Behavior, Address 30 (0x1E)
Bit
Name
15:13
Reserved
12
LED pulsing enable
11:10
LED blink/pulse- stretch rate
9
Reserved
8
LED3 pulse-stretch/
blink select
7
LED2 pulse-stretch/
blink select
6
LED1 pulse-stretch/
blink select
5
LED0 pulse-stretch/
blink select
4:2
Reserved
R18UZ0043EJ0100
Mar 4, 2016
Access
R/W
Sticky bit. Select from LED modes 0–15.
R/W
Sticky bit. Select from LED modes 0–15.
R/W
Sticky bit. Select from LED modes 0–15.
R/W
Sticky bit. Select from LED modes 0–15.
Access
RO
Reserved
R/W
Sticky bit
0: Normal operation
1: LEDs pulse with a 5 kHz, programmable duty cycle when active
R/W
Sticky bit
00: 2.5 Hz blink rate/400 ms pulse-stretch
01: 5 Hz blink rate/200 ms pulse-stretch
10: 10 Hz blink rate/100 ms pulse-stretch
11: 20 Hz blink rate/50 ms pulse-stretch
The blink rate selection for PHY0 globally sets the rate used for all
LED pins on all PHY ports
RO
Reserved
R/W
Sticky bit
1: Pulse-stretch
0: Blink
R/W
Sticky bit
1: Pulse-stretch
0: Blink
R/W
Sticky bit
1: Pulse-stretch
0: Blink
R/W
Sticky bit
1: Pulse-stretch
0: Blink
RO
Reserved
Description
Description
3. Registers
Default
1000
0000
0010
0001
(1/2)
Default
000
0
01
0
0
0
0
0
000
Page 29 of 39
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