HD6417618 RENESAS [Renesas Technology Corp], HD6417618 Datasheet - Page 344

• Manufacturer Part Number: HD6417618
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 12 Ethernet Controller Direct Memory Access Controller (E-DMAC)
8. If counter i reaches or exceeds n, the maximum specified time has elapsed and we can judge
Rev. 6.00 Jun. 12, 2007 Page 312 of 610
REJ09B0131-0600
that the E-DMAC has stopped due to a transmit underflow. Initialize the EtherC and E-DMAC
modules by setting the software-reset bit SWR in the E-DMAC mode register (EDMR). After
re-making initial settings for the Ethernet module, initialize the transmit/receive descriptors
and transmit/receive buffers.