LAN9252SLASHML datasheet(304/329 Pages) MICROCHIP

304 / 329 page

LAN9252

DS00001909A-page 304

 2015 Microchip Technology Inc.

16.1.3

HARDWARE CONFIGURATION REGISTER (HW_CFG)

This register allows the configuration of various hardware features.

Note:

This register can be read while the device is in the reset or not ready / power savings states without leaving

the host interface in an intermediate state. If the host interface is in a reset state, returned data may be

invalid.

Note:

It is not necessary to read all fours BYTEs of this register. DWORD access rules do not apply to this register.

Offset:

074h

Size:

32 bits

Bits

Description

Type

Default

31:28

RESERVED

Device Ready (READY)

When set, this bit indicates that the device is ready to be accessed. Upon

power-up, RST# reset, return from power savings states, EtherCAT chip level

or module level reset, or digital reset, the host processor may interrogate this

field as an indication that the device has stabilized and is fully active.

This rising edge of this bit will assert the Device Ready (READY) bit in the

Interrupt Status Register (INT_STS) and can cause an interrupt if enabled.

Note:

With the exception of the HW_CFG, PMT_CTRL, BYTE_TEST, and

RESET_CTL registers, read access to any internal resources is

forbidden while the READY bit is cleared. Writes to any address

are invalid until this bit is set.

Note:

This bit is identical to bit 0 of the Power Management Control

RESERVED

24:22

RESERVED

21:16

RESERVED

15:14

RESERVED

13:12

RESERVED

11:0

RESERVED

LAN9252/ML 数据表(PDF) 304 Page - Microchip Technology

LAN9252/ML 数据表(HTML) 304 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载

链接网址

LAN9252/ML 数据表(PDF) 304 Page - Microchip Technology

LAN9252/ML 数据表(HTML) 304 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表 下载

链接网址

数据表下载