LPC2378 _ - _ Ethernet

I am interfacing ARM Controller LPC2378 with DP83848C Ethernet Physical Layer Transceiver. I have downloaded a code for ethernet related to the above interface called -EasyWEB- from NXP. While compiling the program, it was not showing any error. But while running the program in my board it was Hanging. As soon as it reach -MAC_COMMAND- to execute the instruction in -Init_EMAC- function, the program Hangs over there:

void Init_EMAC(void)
{ /* Power Up the EMAC controller. */
PCONP = PCONP | 0x40000000;
/* Enable P1 Ethernet Pins. */
if ( MAC_MODULEID == OLD_EMAC_MODULE_ID )
PINSEL2 = 0x50151105;
else
PINSEL2 = 0x50150105;

PINSEL3 = ( PINSEL3 & ~0x0000000F ) | 0x00000005;

/* Reset all EMAC internal modules. */
MAC_MAC1 = MAC1_RES_TX|MAC1_RES_MCS_TX|MAC1_RES_RX| MAC1_RES_MCS_RX|MAC1_SIM_RES| MAC1_SOFT_RES;

MAC_COMMAND = CR_REG_RES | CR_TX_RES | CR_RX_RES;
:

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Since the code was hanging in -MAC_COMMAND, I modified the code. I brought the Command register before the Power Control (PCONP) register to Reset the Rx, Tx and RegReset bit. Then the program was working properly. I was able to write and read to/from DP83848C, I was able to get the correct PHY ID. But I was not able to Initialise Tx and Rx DMA Descriptors. While in the function -rx_descr_init- it gets hanged in the instruction -MAC_RXSTATUS-.