aduc7030 Analog Devices, Inc., aduc7030 Datasheet - Page 31

• Manufacturer Part Number: aduc7030
• Description: Integrated Precision Battery Sensor For Automotive
• Manufacturer: Analog Devices, Inc.

Preliminary Technical Data
ADUC7030 FLASH/EE MEMORY SECURITY
The 30 kByte of Flash/EE memory available to the user can be
read and write protected using the FFE0HID register.
The FEE0HID MMR protects the 30 kBytes. Bits 0-28 of this
register protect Page 0 to Page 57 from writing. Each bit
protects 2 pages, that is, 1 kBytes. Bit 29 to Bit 30 protect Page
58 and Page 59 respectively, that is, each bit write protects a
single page of 512 bytes. The MSB of this register (Bit31)
protects the entire Flash/EE from been read through JTAG.
Flash/EE Memory Protection Registers:
Name:
Address:
Default Value:
Access:
Function:
Table 16. FEE0HID and FEE0PRO MMR Bit Designations
Bit
31
30
29
28-
0
Description
Read protection
Cleared by user to read protect the 32-kbyte Flash/EE Block code.
Set by user to allow read access to the 32-kbyte Flash/EE Block via JTAG.
Write Protection Bit
This bit is set by user code to unprotect protect Page 59.
This bit is cleared by user code write protect Page 59.
Write Protection Bit
This bit is set by user code to unprotect Page 58.
This bit is cleared by user code write protect Page 58.
Write Protection Bits
When set by user code these bits unprotect Page 0 to Page 57 of the 30 kB Flash/EE code memory. Each bit write protects 2 pages
and each pages consists of 512 bytes.
When cleared by user code these bits will write protect pages 0-57 of the 30KB Flash/EE code memory. Each bit write protects two
pages and each page consists of 512 bytes.
FEE0HID and FEE0PRO
0xFFFF0E20 (for FEE0HID) and 0xFFFF0E1C (for FEE0PRO)
0xFFFFFFFF (for FEE0HID) and 0x00000000 (for FEE0PRO)
Read/Write Access
These registers are written by user code to configure the protection of the Flash/EE memory.
Rev. PrE | Page 31 of 150
The FEE0PRO register mirrors the bit definitions of the
FEE0HID MMR. The FEE0PRO MMR allows user code to lock
the protection or security configuration of the Flash/EE
memory so that the protection configuration is automatically
loaded on subsequent power-on or reset events. This flexibility
allows the user to set and test protection settings temporarily
using the FEE0HID MMR and subsequently lock the required
protection configuration (using FEE0PRO) when shipping
protection systems into the field.
ADuC7030/ADuC7033