TMS320C6672
Multicore Fixed and Floating-Point Digital Signal Processor
SPRS708C—February 2012
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7.5.2.6 Reset Type Status Register (RSTYPE)
The reset type status (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 7-13 and described in Table 7-20.
Figure 7-13
Reset Type Status Register (RSTYPE)
31
29
28
EMU-RST
R-0
27
12
11
8
7
3
2
1
0
Reserved
R-0
Reserved
R-0
WDRST[N]
R-0
Reserved
R-0
PLLCTRLRST
R-0
RESET
R-0
POR
R-0
Legend: R = Read only; -n = value after reset
Table 7-20
Reset Type Status Register (RSTYPE) Field Descriptions
Bit
Field
Description
31-29 Reserved
Reserved. Read only. Always reads as 0. Writes have no effect.
28
EMU-RST
Reset initiated by emulation.
0 = Not the last reset to occur.
1 = The last reset to occur.
27-12 Reserved
Reserved. Read only. Always reads as 0. Writes have no effect.
11
10
9
WDRST3
WDRST2
WDRST1
WDRST0
Reserved
PLLCTLRST
Reset initiated by watchdog timer[N].
0 = Not the last reset to occur.
1 = The last reset to occur.
8
7-3
2
Reserved. Read only. Always reads as 0. Writes have no effect.
Reset initiated by PLLCTL.
0 = Not the last reset to occur.
1 = The last reset to occur.
1
0
RESET
POR
RESET reset.
0 = RESET was not the last reset to occur.
1 = RESET was the last reset to occur.
Power-on reset.
0 = Power-on reset was not the last reset to occur.
1 = Power-on reset was the last reset to occur.
End of Table 7-20
7.5.2.7 Reset Control Register (RSTCTRL)
This register contains a key that enables writes to the MSB of this register and the RSTCFG register. The key value
is 0x5A69. A valid key will be stored as 0x000C, any other key value is invalid. When the RSTCTRL or the RSTCFG
is written, the key is invalidated. Every write must be set up with a valid key. The Software Reset Control Register
(RSTCTRL) is shown in Figure 7-14 and described in Table 7-21.
Figure 7-14
Reset Control Register (RSTCTRL)
31
17
16
15
0
Reserved
R-0x0000
SWRST
R/W-0x (1)
KEY
R/W-0x0003
Legend: R = Read only; -n = value after reset;
1 Writes are conditional based on valid key.
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Peripheral Information and Electrical Specifications 139
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