stm32 /stm32h7rs /STM32H7S /ETH /ETH_MACWTR

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Interpret as ETH_MACWTR

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (B_0x0)WTO0 (PWE)PWE

WTO=B_0x0

Description

Watchdog timeout register

Fields

WTO

Watchdog Timeout When the PWE bit is set and the WD bit of the Operating mode configuration register (ETH_MACCR) register is reset, this field is used as watchdog timeout for a received packet. If the length of a received packet exceeds the value of this field, such packet is terminated and declared as an error packet. Encoding is as follows: … Note: When the PWE bit is set, the value in this field should be more than 1,522 (0x05F2). Otherwise, the IEEE 802.3-specified valid tagged packets are declared as error packets and then dropped.

0 (B_0x0): 2 Kbytes

1 (B_0x1): 3 Kbytes

2 (B_0x2): 4 Kbytes

3 (B_0x3): 5 Kbytes

12 (B_0xC): 14 Kbytes

13 (B_0xD): 15 Kbytes

14 (B_0xE): 16383 Bytes

15 (B_0xF): Reserved, must not be used

PWE

Programmable Watchdog Enable When this bit is set and the WD bit of the Operating mode configuration register (ETH_MACCR) register is reset, the WTO field is used as watchdog timeout for a received packet. When this bit is cleared, the watchdog timeout for a received packet is controlled by setting of WD and JE bits in Operating mode configuration register (ETH_MACCR) register.

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