IDT CPS-12, User Manual

Page: 33 / 129

IDT I2C Interface
Revision 1.5
Integrated Device Technology, Inc.
CPS-16/12/8 User Manual 4 - 5 July 10, 2012
for (bit_Pos = 0; bit_Pos < 8; +) {
carry = crc[15];
if (bit_Pos_Mask & byte)
serial_data = 1;
else
serial_data = 0;
for (i=15; i>=0; i--) {
if (i == 15) {
crc[i] = carry ^ crc[i-1];
} else if (i == 2) {
crc[i] = carry ^ crc[i-1];
} else if (i == 0) {
crc[i] = carry ^ serial_data;
} else {
crc[i] = crc[i-1];
}
}
bit_Pos_Mask >>= 1;
}
}
for (i=15; i>=0; i--) {
remainder |= (crc[i] << i);
}
return (remainder);
}
4.3.6 Register Map Example
The following is a list of registers to be configured through an I2C EEPROM, and the I2C values required to
set those registers.
Table 4.2 Register Map Example
Register Value Comment
0x00015C 0x00600000 Block 1
0xE00000 0x01 Block 2
0xE00004 0x02 -
0xE00008 0x03 -
0xE0000C 0x04 -
0xE00010 0x05 -
0xE00014 0x06 -
0xE00018 0x07 -
0xE0001C 0x08 -
0x6c 0x14 Block 3