Texas Instruments TMS320DM36X - Manual (Page 52)

Architecture www.ti.com
Example 4. EMAC Control Module Initialization Code
Uint32 tmpval ;
/* Disable all the EMAC/MDIO interrupts in the control module */
EmacControlRegs->CONTROL.C_RX_EN = 0;
EmacControlRegs->CONTROL.C_TX_EN = 0;
EmacControlRegs->CONTROL.C_RX_THRESH_EN = 0;
EmacControlRegs->CONTROL.C_MISC_EN = 0;
/* Wait about 100 cycles */
for( I=0; i<5; I++ )
tmpval = ECTL_REGS->EWCTL ;
#ifdef INTT_PACING
/* Set the control related to pacing of TX and RX interrupts */
EmacControlRegs->INTR_COUNT->C_RX_IMAX = 0x4; // 4 RX intt/ms
EmacControlRegs->INTR_COUNT->C_TX_IMAX = 0x4; // 4 TX intt/ms
EmacControlRegs->INT_CONTROL = 0x30000; //bit16,bit17 for enabling TX and Rx intt pacing.
EmacControlRegs->INT_CONTROL |= 0x258; // 600 clocks of 150MHz in 4us time
#endif
/* Initialize MDIO and EMAC Module */
[Discussed later in this document]
/* Enable all the EMAC/MDIO interrupts in the control module */
EmacControlRegs->CONTROL.C_RX_EN = 0xff;
EmacControlRegs->CONTROL.C_TX_EN = 0xff;
EmacControlRegs->CONTROL.C_RX_THRESH_EN = 0xff;
EmacControlRegs->CONTROL.C_MISC_EN = 0xf;
52 Ethernet Media Access Controller (EMAC)/Management Data Input/Output SPRUFI5B – March 2009 – Revised December 2010
(MDIO)
Submit Documentation Feedback
© 2009–2010, Texas Instruments Incorporated