MAC7200 datasheet(349/976 Pages) FREESCALE

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Memory Map/Register Definition

MAC7200 Microcontroller Family Reference Manual, Rev. 2

Freescale Semiconductor

271

13.2.2.15.6

Flash ECC Attributes Register (FEAT)

The FEAT is an 8-bit register for capturing the AXBS bus master attributes of 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.

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

Figure 13-28 and Table 13-25 for the Flash ECC Attributes Register definition.

765

43210

Write

Size[2:0]

Protection[3:0]

Reset

————————

Figure 13-28. Flash ECC Attributes (FEAT) Register

Table 13-25. PFEAT Field Descriptions

Field

Description

Write

AMBA-AHB HWRITE.

0 AMBA-AHB read access

1 AMBA-AHB write access

6–4

Size[2:0]

AMBA-AHB HSIZE[2:0].

000 8-bit AMBA-AHB access

001 16-bit AMBA-AHB access

010 32-bit AMBA-AHB access

011 Reserved

1xx Reserved

3–0

Protection[3:0]

AMBA-AHB HPROT[3:0].

Protection[3]: Cacheable

0 Non-cacheable

1 Cacheable

Protection[2]: Bufferable

0 Non-bufferable

1Bufferable

Protection[1]: Mode

0 User mode

1 Supervisor mode

Protection[0]: Type

0I-Fetch

1 Data

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