TMS320DM647_0804 datasheet(86/182 Pages) TI

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6.7.7

Reset Controller Register

6.7.8

Reset Electrical Data/Timing

TMS320DM647/TMS320DM648

Digital Media Processor

SPRS372B – MAY 2007 – REVISED APRIL 2008

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The reset type status (RSTYPE) register is the only register for the reset controller.

The RSTYPE register latches the cause of the last reset. If multiple reset sources occur simultaneously,

this register latches the highest priority reset source. The reset type status register is shown in Figure 6-9

and described in Table 6-22.

Figure 6-9. Reset Type Status Register (RSTYPE)

Reserved

R-0

Reserved

SRST

MRST

WRST

POR

R-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 6-22. Reset Type Status Register (RSTYPE) Field Descriptions

Bit

Field

Value

Description

31:4

Reserved

Reserved. The reserved bit location is always read as 0. A value written to this field has no effect.

SRST

System reset

System Reset was not the last reset to occur.

System Reset was the last reset to occur.

MRST

Max reset

Max Reset was not the last reset to occur.

Max Reset was the last reset to occur.

WRST

Warm reset

Warm Reset was not the last reset to occur.

Warm Reset was the last reset to occur.

POR

Power-on reset

Power-on Reset was not the last reset to occur.

Power-on Reset was the last reset to occur.

NOTE

If a configuration pin must be routed out from the device, the internal pullup/pulldown

(IPU/IPD) resistor should not be relied upon; TI recommends the use of an external

pullup/pulldown resistor.

Peripheral Information and Electrical Specifications

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