ZHCSJ67A December 2018 – August 2019 DP83825I
PRODUCTION DATA.
DP83825I offers modes to optimize cable reach and power consumption. In default mode, it offers a cable reach of 100 meters and above. To achieve a 150-meter cable with the lowest power consumption and Energy Efficient Ethernet, the designer must program a configuration after PHY is out of reset. The following section describes the various modes available and configuration required to achieve these.
This mode offers a 100+ meters cable reach mode where no additional configuration programming is needed.
This mode offers the lowest power consumption along with a cable reach of 130 meters and more. Table 4 shows the required register configuration that is programmed through the MDC/MDIO interface.
Register Address | Value |
---|---|
0x0416 | 0x1F30 |
0x040D | 0x000D |
0x0429 | 0x0200 |
0x030B | 0x0BC0 |
0X030C | 0x0011 |
0x033C | 0x0001 |
0X0311 | 0x0000 |
0x0313 | 0x06E3 |
0x033A | 0x579C |
0x0404 | 0x0000 |
0x001F | 0x4000 |
0x033D | 0x8110 |
0x031B | 0x0048 |
This mode offers a cable reach of 150 meters and more. Table 5 shows the required register configuration that is programmed through the MDC/MDIO interface.
Register Address | Value |
---|---|
0x0416 | 0x1F30 |
0x040D | 0x000D |
0x0429 | 0x0200 |
0x030B | 0x0BC0 |
0X030C | 0x0011 |
0x033C | 0x0001 |
0X0311 | 0x0000 |
0x0313 | 0x06E3 |
0x033A | 0x579C |
0x0404 | 0x0080 |
0x001F | 0x4000 |
0x033D | 0x8110 |
0x031B | 0x0048 |
Energy Efficient Ethernet (EEE) is disabled by default in the DP83825I. EEE must be enabled through register programming. Table 6 shows the required register configuration that is programmed through the MDC/MDIO interface
Register Address | Value |
---|---|
0x0416 | 0x1F30 |
0x040D | 0x000d |
0x0429 | 0x0200 |
0x030B | 0x0BC0 |
0x30C | 0x0011 |
0x33C | 0x0001 |
0x0311 | 0x0000 |
0x0313 | 0x06E3 |
0x033A | 0x579C |
0x0404 | 0x0080 |
0x0130 | 0x4750 |
0x0123 | 0x0800 |
0x030F | 0x0400 |
0x04D4 | 0x6633 |
0x4D5 | 0x027F |
0x4D6 | 0x01B0 |
0x4D7 | 0x01B0 |
0x031F | 0xFC36 |
0x031C | 0x1103 |
0x0101 | 0x0882 |
0x010A | 0x2010 |
0x04CE | 0x00FF |
0x04CD | 0xA5A5 |
0x0308 | 0x0982 |
0x04CF | 0x231D |
0x04D0 | 0x0F8F |
0x033E | 0x861E |
0x04D1 | 0x00C2 |
0x04D2 | 0x215B |
0x001F | 0x4000 |
0x033D | 0x8110 |
0x031B | 0x0048 |