7. I2C Interface > Temporary Master Mode
CPS-1848 User Manual
176
June 2, 2014
Formal Status
This document is confidential and is subject to an NDA.
Integrated Device Technology
7.3.8
I
2
C Master Mode Validation Debug
I
2
C Master operation is controlled by configuration pins and device registers. For more information on I
2
C Master configuration
pins, see the CPS-1848 Datasheet.
The CPS-1848 detects when an I
2
C EEPROM image has an invalid CRC and sets the CHKSUM_FAIL bit of the
. This bit can be verified by initialization software to confirm that the EEPROM load was successful.
In the event of failure, software can be notified automatically through an interrupt or port-write. For information on enabling
interrupt and port-write notification, see
.
0x000C
0x08
Start of Block 2 - Register count = 9
0x000D
0x38
Address = 0xE00000 >> 2 = 0x380000
0x000E
0x00
-
0x000F
0x00
-
0x0010
0x01
Data for address 0xE00000
0x0011
0x02
Data for address 0xE00004
0x0012
0x03
Data for address 0xE00008
0x0013
0x04
Data for address 0xE00010
0x0014
0x05
Data for address 0xE00014
0x0015
0x06
Data for address 0xE00018
0x0016
0x07
Data for address 0xE0001C
0x0017
0x08
Data for address 0xE00020
0x0018
0x09
Data for address 0xE00024
0x0019
0x00
Start of Block 3 - Register count = 1
0x001A
0x00
Address = 0x6c >> 2 = 0x1B
0x001B
0x00
-
0x001C
0x1B
-
0x001D
0x00
Data for address 0x6c = 0x00000014
0x001E
0x00
-
0x001F
0x00
-
0x0020
0x14
-
0x0021
0xD7
CRC = 0xD746
0x0022
0x46
-
Table 69: EEPROM Format Example (Continued)
EEPROM Address
Data
Comment