Datasheet

System and Peripheral Control Registers

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2.5.1.47 System Test Abort Status Register (SYSTASR)

This register is shown in Figure 2-54 and described in Table 2-66.

Figure 2-54. System Test Abort Status Register (SYSTASR) (offset = E8h)

31 16

Reserved

R-0

15 5 4 0

Reserved EFUSE_Abort

R-0 R/WPC-X/0

LEGEND: R/W = Read/Write; R = Read only; WP = Write in privileged mode only; C = Clear; -X = Value unchanged after reset; -n = value

after reset

Table 2-66. System Test Abort Status Register (SYSTASR) Field Descriptions

Bit Field Value Description

31-5 Reserved 0 Read returns 0. Writes have no effect.

4-0 EFUSE_Abort Test Abort status flag. These bits are set when test abort occurred:

Read: The last operation (if any) completed successfully. This is also the value that the

error/status register is set to after reset.

1h Read: Controller times out because there is no last row sent from the FuseROM.

Read: The autoload machine was started, either through the SYS_INITZ signal from the system or

the JTAG data register. In either case, the autoload machine did not find enough FuseROM data

to fill the scan chain.

Read: The autoload machine was started, either through the SYS_INITZ signal from the system or

the JTAG data register. In either case, the autoload machine starts the scan chain with a signature

it expects to see after the scan chain is full. The autoload machine was able to fill the scan chain,

but the wrong signature was returned.

Read: The autoload machine was started, either through the SYS_INITZ signal from the system or

the JTAG data register. In either case, the autoload machine was not able or not allowed to

complete its operation.

Others Read: Reserved.

1Fh Write: These bits are cleared to 0.

186

Architecture SPNU562–May 2014

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