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VSC8540XMVRT-HC データシート(PDF) 47 Page - Microchip Technology

部品番号 VSC8540XMVRT-HC
部品情報  Radiation-Tolerant Single Port Fast Ethernet Copper PHY with RGMII/MII/RMII Interfaces
PDF  87 Pages
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メーカー  MICROCHIP [Microchip Technology]
ホームページ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

VSC8540XMVRT-HC データシート(HTML) 47 Page - Microchip Technology

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2022 Microchip Technology Inc. and its subsidiaries
DS60001603E-page 47
VSC8540RT
6.2.22
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 5-14. For information about enabling the extended LED mode bits in Register 19E1 bits 13 to 12, see Table 5-16
.
6.2.23
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 fol-
lowing table shows the settings you can write to the register or read from the register.
7
ActiPHY link status time-out control [1] R/W
Sticky bit. Bits 7 and 2 are part of the ActiPHY
Link Status time-out control. Bit 7 is the MSB.
00: 2.3 seconds.
01: 3.3 seconds.
10: 4.3 seconds.
11: 5.3 seconds.
0
6
ActiPHY mode enable
R/W
Sticky bit.
1: Enabled.
0
5
FDX status
RO
1: Full-duplex.
0: Half-duplex.
0
4:3 Speed status
RO
00: Speed is 10BASE-T.
01: Speed is 100BASE-TX.
10: Reserved.
11: Reserved.
00
2
ActiPHY link status time-out control [0] R/W
Sticky bit. Bits 7 and 2 are part of the ActiPHY
Link Status time-out control. Bit 7 is the MSB.
00: 2.3 seconds.
01: 3.3 seconds.
10: 4.3 seconds.
11: 5.3 seconds.
1
1:0 Media mode status
RO
00: No media selected.
01: Copper media selected.
10: Reserved.
11: Reserved.
00
TABLE 6-25:
LED MODE SELECT, ADDRESS 29 (0X1D)
Bit
Name
Access
Description
Default
15
Reserved
RO
Reserved.
14:8
Reserved
RO
Reserved.
7:4
LED1 mode select R/W
Sticky bit. Select from LED modes 0–15.
0101
3:0
LED0 mode select R/W
Sticky bit. Select from LED modes 0–15.
0100
TABLE 6-26:
LED BEHAVIOR, ADDRESS 30 (0X1E)
Bit
Name
Access
Description
Default
15:13 Reserved
RO
Reserved.
12
LED pulsing enable
R/W
Sticky bit.
0: Normal operation.
1: LEDs pulse with a 5 kHz, programmable duty
cycle when active.
0
TABLE 6-24:
AUXILIARY CONTROL AND STATUS, ADDRESS 28 (0X1C) (CONTINUED)
Bit
Name
Access
Description
Default



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