Given the following code and keypad layout, what will the function GetKey() return when it is run while keys 2, 3, 7, B, E, and F are pressed? DDRH = 0x0F; RDRH = 0x00; PERH = 0x00; PIEH = 0x00; PTH = 0x0F; unsigned char GetKey(void) { unsigned char KeyMask[16] = { 0xEE, 0xDE, 0xBE, 0x7E, 0XED, 0xDD, 0xBD, 0x7D, 0xEB, 0xDB, 0xBB, 0x7B, 0xE7, 0xD7, 0xB7, 0x77 }; int i; char Key; for (Key=0, i=0; i { PTH = KeyMask[i]; if (PTH == KeyMask[i]) { if (i else Key = A+ i - 10; } } PTH = 0x0F; return (Key); }

0 Assert PORT keypad row o o PORTkeypad row11 PORT2 keypad row2 2 4 Assert Assert Assert keypad row 3 3 PORTx 3] Vcc 4 10 K Read kevpad column 0 PORTx 4] Vcc 10 K Read keypad column 1 PORTx[5) Vcc 10 K Read keypad col umn 2 PORTx[6] Vcc 10 K Read keypad column 3 PORTx[7]