RM0017 Datasheet, PDF (637/904 Pages) STMicroelectronics – The SPC560Bx and SPC560Cx is a new family

Flash Memory
RM0017
28.4.8
Low power mode
The low power mode turns off most of the DC current sources within the flash memory
module. Flash memory low power mode can be selected at ME_<mode>_MC.
The module (flash memory core and registers) is not accessible for read or write once it
enters low power mode.
Wake-up time from low power mode is faster than wake-up time from power-down mode.
When exiting from low power mode the flash memory module returns to its pre-sleep state
in all cases unless it is executing an erase high voltage operation at the time low power
mode is entered.
If the flash memory module enters low power mode during an erase operation, MCR[ESUS]
is programmed to ‘1’. The user may resume the erase operation at the time the module exits
low power mode by programming MCR[ESUS] = 0. MCR[EHV] must be high to resume the
erase operation.
If the flash memory module enters low power mode during a program operation, the
operation will be in any case completed and the low power mode will be entered only after
the programming end.
It is forbidden to enter power-down mode when the low power mode is active.
28.5 Register description
The CFlash and DFlash modules have respective sets of memory mapped registers. The
CFlash register mapping is shown in Table 322. The DFlash register mapping is shown in
Table 323.
Address offset
Table 322. CFlash registers
Register
Location
0x0000
0x0004
0x0008
0x000C
0x0010
0x0014
0x0018
0x0028–0x0038
0x003C
0x0040
0x0044
0x0048
CFlash Low/Mid Address Space Block Locking Register
(CFLASH_LML)
Reserved
CFlash Secondary Low/Mid Address Space Block Locking
Register (CFLASH_SLL)
CFlash Low/Mid Address Space Block Select Register
(CFLASH_LMS)
Reserved
CFlash Address Register (CFLASH_ADR)
Reserved
CFlash User Test 0 register (CFLASH_UT0)
CFlash User Test 1 register (CFLASH_UT1)
CFlash User Test 2 register (CFLASH_UT2)
CFlash User Multiple Input Signature Register 0
(CFLASH_UMISR0)
on page 28-639
on page 28-644
on page 28-648
on page 28-654
on page 28-655
on page 28-656
on page 28-658
on page 28-659
on page 28-660
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Doc ID 14629 Rev 8