Datasheet

Section 21 Ethernet Controller Direct Memory Access Controller (E-DMAC)

Rev. 2.00 Aug. 20, 2008 Page 808 of 1198

REJ09B0403-0200

Bit Bit Name

Initial

value

R/W Description

10 to 0 TFT10 to

TFT0

All 0 R/W Transmit FIFO Threshold

When setting a transmit FIFO, the FIFO must be set

to a smaller value than the specified value of the

FIFO capacity by FDR. The values between H'201 to

H'7FF should not be set.

H'00: Store and forward modes

H'01 to H'0C: Setting prohibited

H'0D: 52 bytes

H'0E: 56 bytes

: :

H'20: 128 bytes

: :

H'40: 256 bytes

: :

H'80: 512 bytes

H'200: 2048 bytes

Note: When starting transmission before one frame of data write has completed, take care the

generation of the underflow.