![Texas Instruments RM46L852 Manual Download Page 81](http://html1.mh-extra.com/html/texas-instruments/rm46l852/rm46l852_manual_1095568081.webp)
PRODUCTPREVIEW
RM46L852
SPNS185 – SEPTEMBER 2012
4.10 Flash Memory
4.10.1 Flash Memory Configuration
Flash Bank: A separate block of logic consisting of 1 to 16 sectors. Each flash bank normally has a
customer-OTP and a TI-OTP area. These flash sectors share input/output buffers, data paths, sense
amplifiers, and control logic.
Flash Sector: A contiguous region of flash memory which must be erased simultaneously due to physical
construction constraints.
Flash Pump: A charge pump which generates all the voltages required for reading, programming, or
erasing the flash banks.
Flash Module: Interface circuitry required between the host CPU and the flash banks and pump module.
Table 4-23. Flash Memory Banks and Sectors
Memory Arrays (or Banks)
Sector
Segment
Low Address
High Address
No.
BANK0 (1.25MBytes)
0
16K Bytes
0x0000_0000
0x0000_3FFF
1
16K Bytes
0x0000_4000
0x0000_7FFF
2
16K Bytes
0x0000_8000
0x0000_BFFF
3
16K Bytes
0x0000_C000
0x0000_FFFF
4
16K Bytes
0x0001_0000
0x0001_3FFF
5
16K Bytes
0x0001_4000
0x0001_7FFF
6
32K Bytes
0x0001_8000
0x0001_FFFF
7
128K Bytes
0x0002_0000
0x0003_FFFF
8
128K Bytes
0x0004_0000
0x0005_FFFF
9
128K Bytes
0x0006_0000
0x0007_FFFF
10
128K Bytes
0x0008_0000
0x0009_FFFF
11
128K Bytes
0x000A_0000
0x000B_FFFF
12
128K Bytes
0x000C_0000
0x000D_FFFF
13
128K Bytes
0x000E_0000
0x000F_FFFF
14
128K Bytes
0x0010_0000
0x0011_FFFF
15
128K Bytes
0x0012_0000
0x0013_FFFF
BANK7 (64kBytes) for EEPROM emulation
0
16K Bytes
0xF020_0000
0xF020_3FFF
1
16K Bytes
0xF020_4000
0xF020_7FFF
2
16K Bytes
0xF020_8000
0xF020_BFFF
3
16K Bytes
0xF020_C000
0xF020_FFFF
4.10.2 Main Features of Flash Module
•
Support for multiple flash banks for program and/or data storage
•
Simultaneous read access on a bank while performing program or erase operation on any other bank
•
Integrated state machines to automate flash erase and program operations
•
Pipelined mode operation to improve instruction access interface bandwidth
•
Support for Single Error Correction Double Error Detection (SECDED) block inside Cortex-R4F CPU
–
Error address is captured for host system debugging
•
Support for a rich set of diagnostic features
Copyright © 2012, Texas Instruments Incorporated
System Information and Electrical Specifications
81
Summary of Contents for RM46L852
Page 170: ......