HTU Control Registers
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SPNU563A–March 2018
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High-End Timer Transfer Unit (HTU) Module
24.4.26 Memory Protection Control and Status Register (HTU MPCS)
Figure 24-39. Memory Protection Control and Status Register (HTU MPCS) [offset = 70h]
31 28 27 24
Reserved CPNUM0
R-0 R-0
23 18 17 16
Reserved MPEFT1 MPEFT0
R-0 R/W1CP-0 R/W1CP-0
15 12 11 8
Reserved CPNUM1
R-0 R-0
7 6 5 4 3 2 1 0
Reserved INT ENA01 ACCR01 REG01ENA INT ENA0 ACCR0 REG0ENA
R-0 R/WP-0 R/WP-0 R/WP-0 R/WP-0 R/WP-0 R/WP-0
LEGEND: R/W = Read/Write; R = Read only; WP = Write in privilege mode only; W1CP = Write 1 in privilege mode to clear the bit; -n =
value after reset
Table 24-39. Memory Protection Control and Status Register (HTU MPCS) Field Descriptions
Bit Field Value Description
31-28 Reserved 0 Reads return 0. Writes have no effect.
27-24 CPNUM0 Control Packet Number for single memory protection region configuration. CPNUM0 holds the number
of the CP, which has caused the first memory protection error when only one memory protection region
is used. This number is not updated for multiple access violations until it is read by the CPU. During
debug mode, CPNUM0 is frozen even when read.
0 CP A of DCP0
1h CP B of DCP0
2h CP A of DCP1
3h CP B of DCP1
4h CP A of DCP2
5h CP B of DCP2
6h CP A of DCP3
7h CP B of DCP3
8h CP A of DCP4
9h CP B of DCP4
Ah CP A of DCP5
Bh CP B of DCP5
Ch CP A of DCP6
Dh CP B of DCP6
Eh CP A of DCP7
Fh CP B of DCP7
23-18 Reserved 0 Reads return 0. Writes have no effect.
17 MPEFT1 Memory Protection Error Fault Flag 1. This bit is set, when the HTU performs an access outside the
region defined by the MP0S and MP0E and the MP1S and MP1E registers, when the access violates
the rights defined by ACCR01, and when the REG01ENA bit is set.
0 No fault detected. Writing a 0 has no effect.
1 Fault detected. Writing a 1 will clear the bit.
16 MPEFT0 Memory Protection Error Fault Flag 0. This bit is set, when the HTU performs an access outside the
region defined by the MP0S and MP0E registers, when the access violates the rights defined by ACCR,
and when the REG0ENA bit is set.
0 No fault detected. Writing a 0 has no effect.
1 Fault detected. Writing a 1 will clear the bit.
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