MAC7200 datasheet(350/976 Pages) FREESCALE

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Memory Map/Register Definition

MAC7200 Microcontroller Family Reference Manual, Rev. 2

272

Freescale Semiconductor

13.2.2.15.7

Flash ECC Data Register (FEDR)

The FEDR is a 32-bit register for capturing the data associated with the last, properly-enabled ECC event

in the flash memory. Depending on the state of the ECC Configuration Register, an ECC event in the flash

causes the address, attributes and data associated with the access to be loaded into the FEAR, FEMR,

FEAT and FEDR registers, and the appropriate flag (F1BC or FNCE) in the ECC Status Register to be

asserted.

The data captured on a multi-bit non-correctable ECC error is undefined.

This register can only be read from the IPS programming model; any attempted write is ignored. See

Figure 13-29 and Table 13-26 for the Flash ECC Data Register definition.

13.2.2.15.8

RAM ECC Address Register (REAR)

The REAR is a 32-bit register for capturing the address of the last, properly-enabled ECC event in the

RAM memory. Depending on the state of the ECC Configuration Register, an ECC event in the RAM

causes the address, attributes and data associated with the access to be loaded into the REAR, RESR,

REMR, REAT and REDR registers, and the appropriate flag (R1BC or RNCE) in the ECC Status Register

to be asserted.

This register can only be read from the IPS programming model; any attempted write is ignored. See

Figure 13-31 and Table 13-27 for the RAM ECC Address Register definition.

Figure 13-29. Flash ECC Data (FEDR) Register

FEDR[31:16]

Reset

————————————————

9876543210

FEDR[15:0]

Reset

————————————————

Figure 13-30. Platform Flash ECC Data (PFEDR) Register

Table 13-26. FEDR Field Descriptions

Field

Description

31–0

FEDR

Flash ECC Data Register. This 64-bit register contains the data associated with the faulting access of the

last, properly-enabled flash ECC event. The register contains the data value taken directly from the data

bus.

MAC7200 Datasheet(PDF) 350 Page - Freescale Semiconductor, Inc