PIC32MX795F512L-80IPT Datasheet, PDF (58/68 Pages) Microchip Technology – PIC32 Flash Programming Specification

PIC32
REGISTER 19-1: ECR: EJTAG CONTROL REGISTER
Bit
Bit
Bit
Bit
Bit
Bit
Range 31/23/15/7 30/22/14/6 29/21/13/5 28/20/12/4 27/19/11/3
31:24
23:16
15:8
7:0
R/W-0
Rocc
R-0
VPED
R/W-0
ProbEn
U-0
—
R-0
R-0
Psz<1:0>
R-0
R-0
Doze
Halt
R/W-0
U-0
ProbTrap
—
U-0
U-0
—
—
U-0
—
R/W-0
PerRst
R/W-0
EjtagBrk
U-0
—
U-0
—
R-0
PrnW
U-0
—
R-0
DM
Bit
26/18/10/2
U-0
—
R/W-0
PrACC
U-0
—
U-0
—
Bit
25/17/9/1
U-0
—
U-0
—
U-0
—
U-0
—
Bit
24/16/8/0
U-0
—
R/W-0
PrRst
U-0
—
U-0
—
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 31-29 See Note 1
bit 28-24 Unimplemented: Read as ‘0’
bit 23-19 See Note 1
bit 18 PrACC: Pending Processor Access and Control bit
This bit indicates a pending processor access and controls finishing of a pending processor access. A write
of ‘0’ finishes processor access if pending. A write of ‘1’ is ignored. A successful FASTDATA access will clear
this bit.
1 = Pending processor access
0 = No pending preprocessor access
bit 17 Unimplemented: Read as ‘0’
bit 16 See Note 1
bit 15 ProbEn: Processor Access Service Control bit
This bit controls where the probe handles accesses to the DMSEG segment through servicing of processor
accesses.
1 = Probe services processor accesses
0 = Probe does not service processor access
bit 14 ProbTrap: Debug Exception Vector Control Location bit
This bit controls the location of the debug exception vector.
1 = 0xFF200200
0 = 0xBFC00480
bit 13 Unimplemented: Read as ‘0’
bit 12 EjtagBrk: Debug Interrupt Exception Request bit
This bit requests a debug interrupt exception to the processor when this bit is written as ‘1’. A write of ‘0’ is
ignored.
1 = A debug interrupt exception request is pending
0 = A debug interrupt exception request is not pending
bit 11-4 Unimplemented: Read as ‘0’
bit 3
See Note 1
bit 2-0 Unimplemented: Read as ‘0’
Note 1: For descriptions of these bits, please refer to the EJTAG Control Register Field Descriptions in the “EJTAG
Specification” (MD00047), which is available from MIPS Technologies, Inc. (www.mips.com).
DS61145L-page 58
 2007-2013 Microchip Technology Inc.