Error Correction Status Module (ECSM)
MPC5566 Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor
8-3
8.2.1
Register Descriptions
Attempted accesses to reserved addresses result in an error termination, while attempted writes to
read-only registers are ignored and do not terminate with an error. Unless noted otherwise, writes to the
programming model must match the size of the register; for example, an
n
-bit register only supports
n
-bit
writes, etc. Attempted writes of a different size than the register width produce an error termination of the
bus cycle and no change to the targeted register.
8.2.1.1
Software Watchdog Timer Control, Service, and Interrupt Registers
(ECSM_SWTCR, ECSM_SWTSR, and ECSM_SWTIR)
These registers provide control and configuration for a software watchdog timer, and are included as part
of a standard Freescale ECSM module incorporated in the device. The e200z6 core also provides this
functionality and is the preferred method for watchdog implementation. To optimize code portability to
other Power Architecture-based products in the MPC5500 family, use the e200z6 watchdog functions
instead of the registers in the ECSM.
NOTE
Do not change the reset values in the ECSM watchdog registers. Any
change to the reset values can cause an unintentional
ECSM_SWTIR_SWTIC interrupt.
8.2.1.2
ECC Registers
There are a number of program-visible registers for the sole purpose of reporting and logging of memory
failures. These registers include the following:
•
ECC configuration register (ECSM_ECR)
•
ECC status register (ECSM_ESR)
•
ECC error generation register (EEGR)
•
Flash ECC address register (ECSM_FEAR)
•
Flash ECC master number register (ECSM_FEMR)
•
Flash ECC attributes register (ECSM_FEAT)
•
Flash ECC data register (ECSM_FEDR)
•
RAM ECC address register (ECSM_REAR)
•
RAM ECC master number register (ECSM_REMR)
•
RAM ECC attributes register (ECSM_REAT)
•
RAM ECC data register (ECSM_REDR)
The details of each ECC register are in the subsequent sections.
Summary of Contents for MPC5566
Page 81: ...Introduction MPC5566 Microcontroller Reference Manual Rev 2 1 24 Freescale Semiconductor...
Page 135: ...Signal Description MPC5566 Microcontroller Reference Manual Rev 2 2 54 Freescale Semiconductor...
Page 189: ...Reset MPC5566 Microcontroller Reference Manual Rev 2 4 20 Freescale Semiconductor...
Page 603: ...Flash Memory MPC5566 Microcontroller Reference Manual Rev 2 13 38 Freescale Semiconductor...
Page 609: ...SRAM MPC5566 Microcontroller Reference Manual Rev 2 14 6 Freescale Semiconductor...
Page 1073: ...MPC5566 Microcontroller Reference Manual Rev 2 22 36 Freescale Semiconductor...
Page 1185: ...Nexus MPC5566 Microcontroller Reference Manual Rev 2 25 92 Freescale Semiconductor...
