Atmel Xplained Pro Evaluation Kit ATSAMD20-XPRO ATSAMD20-XPRO Scheda Tecnica
Codici prodotto
ATSAMD20-XPRO
63
Atmel | SMART SAM D20 [DATASHEET]
Atmel-42129K–SAM-D20_datasheet–06/2014
12.13.11 Coresight ROM Table Memory Type
Name:
MEMTYPE
Offset:
0x1FCC
Reset:
0x0000000X
Property:
-
z
Bits 31:1 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
z
Bit 0 – SMEMP: System Memory Present
This bit indicates whether system memory is present on the bus that connects to the ROM table.
This bit indicates whether system memory is present on the bus that connects to the ROM table.
This bit is set at powerup if the device is not protected indicating that the system memory is accessible from a
debug adapter.
debug adapter.
This bit is cleared at powerup if the device is protected indicating that the system memory is not accessible from a
debug adapter.
debug adapter.
Bit
31
30
29
28
27
26
25
24
Access
R
R
R
R
R
R
R
R
Reset
0
0
0
0
0
0
0
0
Bit
23
22
21
20
19
18
17
16
Access
R
R
R
R
R
R
R
R
Reset
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
Access
R
R
R
R
R
R
R
R
Reset
0
0
0
0
0
0
0
0
Bit
7
6
5
4
3
2
1
0
SMEMP
Access
R
R
R
R
R
R
R
R
Reset
0
0
0
0
0
0
0
X