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Please, explain me RXFD value in OTG_FS_GRXFSIZ?

shumel
Associate
Posted on October 15, 2014 at 10:50

Hello!

Sorry for possible mistakes, English - not my native language.

The RM0090 contains on page 1269:

OTG_FS Receive FIFO size register (OTG_FS_GRXFSIZ)

Reset value: 0x0000 0200

Bits 15:0 RXFD: RxFIFO depth

This value is in terms of 32-bit words.

Minimum value is 16

Maximum value is 256

The power-on reset value of this register is specified as the largest Rx data FIFO depth. 

Explain me, please, how

Reset value - 0x0000 0200

(512 decimal) - is

specified as the largest Rx data FIFO depth

(2048 bytes), so

1.25 Kbyte of dedicated RAM

(page 1240 of RM)?

It's value outside the range

Minimum value is 16 Maximum value is 256

, so, how understand it? Or its value is hexadecimal?

I didn't find any discussions by request ''OTG_FS_GRXFSIZ'', so, please, sorry, if this issue has been raised. If so, please, give me proper link.

Thank you!

With respect, Shumel Vladimir.

#otg_fs_grxfsiz #rxfifo-depth #f4
1 REPLY 1
Posted on October 02, 2017 at 20:51

+1