MPC8540 datasheet(373/1302 Pages) FREESCALE

373 / 1302 page

Memory Map/Register Definition

MPC8540 PowerQUICC III Integrated Host Processor Reference Manual, Rev. 1

Freescale Semiconductor

9-19

Table 9-15 describes the ECC_ERR_INJECT fields.

9.4.1.11 Memory Data Path Read Capture High (CAPTURE_DATA_HI)

The memory data path read capture high register, shown in Figure 9-12, stores the high word of

the read data path during error capture.

Figure 9-12. Memory Data Path Read Capture High Register (CAPTURE_DATA_HI)

Table 9-16 describes the CAPTURE_DATA_HI fields.

Table 9-15. ECC_ERR_INJECT Field Descriptions

Bits

Name

Description

0–21

—

Reserved

EMB

ECC mirror byte

0 Mirror byte functionality disabled

1 Mirror the most significant data path byte onto the ECC byte.

EIEN

Error injection enable

0 Error injection disabled

1 Error injection enabled. This applies to the data mask bits, the ECC mask bits, and the ECC mirror bit.

24–31

EEIM ECC error injection mask. Setting a mask bit causes the corresponding ECC bit to be inverted on

memory bus writes.

ECHD

Reset

0000_0000_0000_0000_0000_0000_0000_0000

Offset

0x0_2E20

Table 9-16. CAPTURE_DATA_HI Field Descriptions

Bits

Name

Description

0–31

ECHD

Error capture high data path. Captures the high word of the data path when errors are detected.

MPC8540 Datasheet(PDF) 373 Page - Freescale Semiconductor, Inc