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Example 3-4. EMAC Control Module Initialization Code
Uint32 tmpval ;
/* Disable all the EMAC/MDIO interrupts in the control module */
EmacControlRegs->CONTROL.CMRXINTEN
EmacControlRegs->CONTROL.C_TX_EN
EmacControlRegs->CONTROL.CMRXTHRESHINTEN = 0;
EmacControlRegs->CONTROL.C_MISC_EN
/* 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->CMINTCTRL = 0x30000; //bit16,bit17 for enabling TX and Rx intt pacing.
EmacControlRegs->CMINTCTRL |= 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.CMRXINTEN
EmacControlRegs->CONTROL.C_TX_EN
EmacControlRegs->CONTROL.CMRXTHRESHINTEN = 0xff;
EmacControlRegs->CONTROL.C_MISC_EN
SPRUGX9 – 15 April 2011
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Preliminary
= 0;
= 0;
= 0;
= 0xff;
= 0xff;
= 0xf;
© 2011, Texas Instruments Incorporated
Architecture
447
EMAC/MDIO Module
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