Electronic – LPC1768 Baud rate

I've been trying to configure UART module of LPC1768. Board comes with a crystal oscillator of 12Mhz. It does nothing more than receiving a character and transmitting it at the same time. I am using Keil simulator.
This is the code,

#include <LPC17xx.H>

void uart_init()
{
    LPC_PINCON->PINSEL0 = 0X0500000;
    LPC_UART2->LCR = 0X83;
    LPC_UART2->DLL = 162;
    LPC_UART2->LCR = 0X03;
}

int main()
{
    uart_init();

    while(1)
    {
        while(LPC_UART2->LSR & (1<<0));
        LPC_UART2->THR = LPC_UART2->RBR;
        while(LPC_UART2->LSR & (1<<6));
    }
}

I'm not configuring any PLL register, only using default values.

I"ve referred several forums to find the baud rate,
https://www.google.co.in/search?q=lp1768+pclk&rlz=1C1CHBF_enIN754IN754&oq=lp1768+pclk&aqs=chrome..69i57.5207j0j1&sourceid=chrome&ie=UTF-8

By referring system_LPC17xx.c,

#define CLOCK_SETUP           1
#define SCS_Val               0x00000020
#define CLKSRCSEL_Val         0x00000001
#define PLL0_SETUP            1
#define PLL0CFG_Val           0x00050063
#define PLL1_SETUP            1
#define PLL1CFG_Val           0x00000023
#define CCLKCFG_Val           0x00000003
#define USBCLKCFG_Val         0x00000000
#define PCLKSEL0_Val          0x00000000
#define PCLKSEL1_Val          0x00000000
#define PCONP_Val             0x042887DE
#define CLKOUTCFG_Val         0x00000000

From #define PLL0CFG_Val 0x00050063,

Bit 14-0 supplies the M value, and the value stored here is M-1; 0x0063 which is 99 in decimal, So M = 100,

Bit 23-16 Supplies the value "N", The value stored here is N – 1; 0x05=5 in decimal, so N = 6

From #define CCLKCFG_Val 0x00000003,

Bit 7-0, Selects the divide value for creating the CPU clock (CCLK), By putting a value of 3, CCLK = PLLCLK/4

I'm using UART2, which comes under PCLKSEL2,

From #define PCLKSEL2_Val 0x00000000,

when set 0, PCLK_peripheral = CCLK/4

TO find PLL0 freq,
PLL0_clk = (2 * M * FOSC) / N
Cr
==>PLL0CLK = (2 * 100 * 12)/6
==>PLL0CLK = 400Mhz

Now, CCLK = PPL0CLk/4
==>CCLk = 400 / 4 = 100Mhz

and PCLK = CCLK/4 = 100/4 = 25Mhz

To calculate DLL,
DLL = PCLK/(16 * Baud rate)
for 9600 Bpm,
DLL = 25000000/(16 * 9600)
==>DLL = 162

But I can't transmit or receive anything when I tried to simulate the program
I've only limited knowledge in ARM, that's why I wrote my calculation method so that anyone can correct me if I'm wrong.

Also,
In the datasheet, they've given a table showing Multiplier values for PLL0 with a 32 kHz input

But using this equation PLL0_clk = (2 * M * FOSC) / N, I couldn't find any value given in the table,
eg:
for M = 4272 and N = 1,
PLL0clk = (2 * 4272 * 32)/1 = 273408 kHz, 273.408 Mhz, But in given table it's 279.9698

Thanks