MK30DN512ZVLK10 Freescale Semiconductor, MK30DN512ZVLK10 Datasheet - Page 364

• Manufacturer Part Number: MK30DN512ZVLK10
• Description: ARM Microcontrollers - MCU KINETIS 512K SLCD
• Manufacturer: Freescale Semiconductor

Specifications of MK30DN512ZVLK10

• Core: ARM Cortex M4
• Processor Series: K30
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 512 KB
• Data Ram Size: 128 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.71 V to 3.6 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: LQFP-80
• Mounting Style: SMD/SMT

Functional Description
18.4.1.1 Hit Determination
To determine if the current reference hits in the given region, two magnitude comparators
are used with the region's start and end addresses. The boolean equation for this portion
of the hit determination is:
region_hit = ((addr[31:5] >= RGDn_Word0[SRTADDR]) & (addr[31:5] <= RGDn_Word1[ENDADDR])) &
RGDn_Word3[VLD]
where addr is the current reference address, RGDn_Word0[SRTADDR] and
RGDn_Word1[ENDADDR] are the start and end addresses, and RGDn_Word3[VLD] is
the valid bit.
18.4.1.2 Privilege Violation Determination
While the access evaluation macro is determining region hit, the logic is also evaluating
if the current access is allowed by the permissions defined in the region descriptor. Using
the master and supervisor/user mode signals, a set of effective permissions is generated
from the appropriate fields in the region descriptor. The protection violation logic then
evaluates the access against the effective permissions using the specification shown
below.
18.4.2 Putting It All Together and Error Terminations
For each slave port monitored, the MPU performs a reduction-AND of all the individual
terms from each access evaluation macro. This expression then terminates the bus cycle
with an error and reports a protection error for three conditions:
364
Instruction fetch read
Description
Data write
Data read
The MPU does not verify that ENDADDR ≥ SRTADDR.
K30 Sub-Family Reference Manual, Rev. 6, Nov 2011
Table 18-80. Protection Violation Definition
—
—
—
—
0
1
r
MxUM
—
—
—
—
w
0
1
NOTE
—
—
—
—
0
1
x
Yes, no execute permission
Yes, no read permission
Yes, no write permission
No, access is allowed
No, access is allowed
No, access is allowed
Protection
Violation?
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