Memory Programming - Texas Instruments SimpleLink CC2620 Technical Reference Manual

FLASH

7.4.2 Memory Programming

Memory programming is done using TI provided API. When calling the API functions, all interrupts should
be disabled to prevent any attempts to read the FLASH during the execution of these functions.
Table 7-2. CC26xx and CC13xx Memory Write/Erase Protection
Memory Area
CC26xx and
CC13xx State
Unpacked die
Packed die
Engineering sample
Customer
development
Customer delivery
case 1
Customer delivery
case 2
(1)
Locked: Not writable and not erasable
(2)
Free: Writable and erasable
(3)
Fixed: The number of this type is fixed
(4)
The Chip Erase function erases all sectors not locked by TI.
7.4.3 FLASH Memory Programming
During a flash memory write or erase operation, the Flash memory must not be read. If instruction
execution is required during a flash memory operation, the executing code must be placed in SRAM (and
executed from SRAM) while the flash operation is in progress.
7.5 Power Management Requirements
The module implements the following power-reducing functionalities:
• Voltage Off: The module logic VDD is turned off. Pump and bank is kept in deep sleep. This mode
requires a reset and software configuration to become active.
• Power Off: This is the same state as Voltage Off with the only difference that module logic has
retention on all registers. From Power Off mode, the module can become active without any software
configurations.
• Deep Standby: Internal circuits are partly powered down. No internal configuration is required to
become active, but there is some delay due to voltage ramping and so on.
• Idle Reading: Use advanced power reduction features in the Pump and Bank to save power when no
active reading is going on. In this mode, switching to Active Read is done without any reduced read
latency.
• Reading: Flash is actively reading without any power reduction.
540
Versatile Instruction Memory System (VIMS)
FCFG0 FCFG1
(Efuse) (ENGR)
Write 1s
Free
(no way back)
Locked Free
Locked Free
Locked Locked
Locked Locked
Locked Locked
Copyright © 2015, Texas Instruments Incorporated
Ti locked
CCFG
Sector
Free None
Free None
Free None
Free Fixed
Writable
(Not Fixed
(4)
erasable)
(4)
Locked Fixed
SWCU117C – February 2015 – Revised September 2015
www.ti.com
(1) (2) (3)
Customer
Customer Free
Locked
None All
None All
None All
Except TI locked
None
sectors
Can add locked
May be reduced
(4)
sectors
(4) (4)
Fixed Fixed
Submit Documentation Feedback
(4)