Texas Instruments RM48 series, Technical Reference Manual

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Memory Organization
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104 SPNU503C – March 2018
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Architecture
Table 2-3. Module Registers / Memories Memory-Map (continued)
Name Memory Select
Frame Address
Frame
Size
Actual
Size
Response for Access to
Unimplemented
Location in Frame
Start End
RAM ECC odd PPS6 0xFFFF_F900 0xFFFF_F9FF 256B 256B
Reads return zeros,
writes have no effect
RTP PPS6 0xFFFF_FA00 0xFFFF_FAFF 256B 256B
Reads return zeros,
writes have no effect
RTI + DWWD PPS7 0xFFFF_FC00 0xFFFF_FCFF 256B 256B
Reads return zeros,
writes have no effect
VIM Parity PPS7 0xFFFF_FD00 0xFFFF_FDFF 256B 256B
Reads return zeros,
writes have no effect
VIM PPS7 0xFFFF_FE00 0xFFFF_FEFF 256B 256B
Reads return zeros,
writes have no effect
System Module -
Frame 1
PPS7 0xFFFF_FF00 0xFFFF_FFFF 256B 256B
Reads return zeros,
writes have no effect
2.2.3 Flash Memory
The RM48x microcontrollers support up to 3MB of flash for use as program memory. This is divided into
two separate flash banks, each 1.5MB. The microcontrollers also support a separate 64KB flash bank for
use as emulated EEPROM.
2.2.3.1 Flash Bank Sectoring Configuration
Each bank is divided into multiple sectors. A flash sector is the smallest region in the flash bank that must
be erased. The sectoring configuration of each flash bank is shown in
Table 2-4 .
1. The Flash banks are 144-bit wide bank with ECC support.
2. The flash bank7 can be programmed while executing code from flash bank0 or bank1.
3. Code execution is not allowed from flash bank7.
Refer to the device datasheet for electrical and timing specifications related to the flash module.
Table 2-4. Flash Memory Banks and Sectors
Sector NO. SECTOR SIZE Low Address High address
Bank 0: 1.5M Bytes
0 32K Bytes 0x0000_0000 0x0000_7FFF
1 32K Bytes 0x0000_8000 0x0000_FFFF
2 32K Bytes 0x0001_0000 0x0001_7FFF
3 32K Bytes 0x0001_8000 0x0001_FFFF
4 128K Bytes 0x0002_0000 0x0003_FFFF
5 128K Bytes 0x0004_0000 0x0005_FFFF
6 128K Bytes 0x0006_0000 0x0007_FFFF
7 128K Bytes 0x0008_0000 0x0009_FFFF
8 128K Bytes 0x000A_0000 0x000B_FFFF
9 128K Bytes 0x000C_0000 0x000D_FFFF
10 128K Bytes 0x000E_0000 0x000F_FFFF
11 128K Bytes 0x0010_0000 0x0011_FFFF
12 128K Bytes 0x0012_0000 0x0013_FFFF
13 128K Bytes 0x0014_0000 0x0015_FFFF
14 128K Bytes 0x0016_0000 0x0017_FFFF
Bank 1: 1.5M Bytes
0 128K Bytes 0x0018_0000 0x0019_FFFF