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TMPR4956C Datasheet(PDF) 152 Page - Toshiba Semiconductor

Part # TMPR4956C
Description  64-Bit TX System RISC TX49 Family
PDF  286 Pages
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Manufacturer  TOSHIBA [Toshiba Semiconductor]
Direct Link  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TMPR4956C Datasheet(HTML) 152 Page - Toshiba Semiconductor

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Chapter 8 CPU Exception
8-24
Figure 8.20.5 ColdReset, SoftReset & NMI Exception Handling (HW) and
Servicing Guidelines (SW)
PC
← 0xFFFF FFFF BFC0 0000
ErrorEPC
← PC
ERET
ColdReset Service Code
SoftReset Service Code
NMI Service Code
Status bit 20
(SR)
Yes
= 0
(Optional)
No
= 1
Cold Reset Exception
Soft Reset & NMI Exception
Note: There is no indication from the
proessor to differentiate between
NMI & SoftReset;
there must be a system level indication.
NMI?
Status:
BEV
← 1
TS
← 0 (*)
SR
← 1
ERL
← 1
Random
← TLBENTRIES-1
Wired
← 0
Status:
BEV
← 1
TS
← 0 (*)
SR
← 0
ERL
← 1
(*) Reserved for TX4956
Instr. in
Br. Dly. Slot?
ErrorEPC
← PC - 4
Yes
No



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