TMS320DM647_09 datasheet(87/181 Pages) TI

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TMS320DM647

TMS320DM648

www.ti.com

SPRS372F – JANUARY 2010 – REVISED SEPTEMBER 2009

6.7.7

Reset Controller Register

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.

6.7.8

Reset Electrical Data/Timing

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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