SH7764 Datasheet, PDF (802/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 19 Ethernet Controller (EtherC)
(2) Manual PAUSE Frame Transmission
PAUSE frames are transmitted by directives from the software. When writing the Timer value to
MPR, manual PAUSE frame transmission is started. With this method, PAUSE frame
transmission is carried out only once.
(3) PAUSE Frame Reception
The next frame is not transmitted until the time indicated by the Timer value elapses after
receiving a PAUSE frame. However, the transmission of the current frame is continued. A
received PAUSE frame is valid only when the RXF bit in ECMR is set to 1. The number of times
of PAUSE frame receptions is counted.
Rev. 1.00 Nov. 22, 2007 Page 746 of 1692
REJ09B0360-0100