HD6417618 datasheet(308/646 Pages) RENESAS

Part #	HD6417618

Description	32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series

PDF	646 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

Logo

308 / 646 page

Section 12 Ethernet Controller Direct Memory Access Controller (E-DMAC)

Rev. 6.00 Jun. 12, 2007 Page 276 of 610

REJ09B0131-0600

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.

H'00: Store and forward modes

H'01 to H'0C: Setting prohibited

H'0D: 52 bytes

H'0E: 56 bytes

H'1F: 124 bytes

H'20: 128 bytes

H'3F: 252 bytes

H'40: 256 bytes

H'41: 260 bytes (Setting prohibited in SH7618,

setting enabled in SH7618A)

H'42: 264 bytes (Setting prohibited in SH7618,

setting enabled in SH7618A)

H'7F: 508 bytes (Setting prohibited in SH7618,

setting enabled in SH7618A)

H'80: 512 bytes (Setting prohibited in SH7618,

setting enabled in SH7618A)

H'81 to H'200: Setting prohibited

Note:

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

generation of the underflow.

HD6417618 Datasheet(PDF) 308 Page - Renesas Technology Corp