pmpcfg0
PMP Configuration Register 0
PMP entry configuration
Field Summary
| Name | Location | Type | Reset Value |
|---|---|---|---|
7:0 |
RW-R |
UNDEFINED_LEGAL |
|
15:8 |
RW-R |
UNDEFINED_LEGAL |
|
23:16 |
RW-R |
UNDEFINED_LEGAL |
|
31:24 |
RW-R |
UNDEFINED_LEGAL |
|
39:32 |
RW-R |
UNDEFINED_LEGAL |
|
47:40 |
RW-R |
UNDEFINED_LEGAL |
|
55:48 |
RW-R |
UNDEFINED_LEGAL |
|
63:56 |
RW-R |
UNDEFINED_LEGAL |
Fields
pmp0cfg
- Location
-
pmpcfg0[7:0] - Description
-
PMP configuration for entry 0
The bits are as follows:
Name
Location
Description +
L
7
Locks the entry from further modification. Additionally, when set, PMP checks also apply to M-mode for the entry.
-
6:5
Reserved Writes shall be ignored.
A
4:3
Address matching mode. One of:
+ [when="PMP_GRANULARITY < 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NA4 (2) - Naturally aligned four-byte region * NAPOT (3) - Natrually aligned power of two
+ [when="PMP_GRANULARITY >= 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NAPOT (3) - Natrually aligned power of two
+
Naturally aligned four-byte region, NA4 (2), is not valid (not needed when the PMP granularity is larger than 4 bytes).
+
X
2
When clear, instruction fetchs cause an
Access Faultfor the matching region and privilege mode.W
1
When clear, stores and AMOs cause an
Access Faultfor the matching region and privilege mode.R
0
When clear, loads cause an
Access Faultfor the matching region and privilege mode.The combination of R = 0, W = 1 is reserved.
- Type
RW-R |
Read-Write Restricted Field is writable by software. Only certain values are legal. Writing an illegal value into the field is ignored, and the field retains its prior state. |
- Reset value
-
UNDEFINED_LEGAL
- Software write
-
This field has special behavior when written by software (e.g., through csrrw).
When software tries to write
csr_value, the field will be written with the return value of the function below.if ((CSR[pmpcfg0].pmp0cfg) == 0) { if (! { if ((false) || csr_value.pmp0cfg & 0x18) != 0x10 { return csr_value.pmp0cfg; } } } return CSR[pmpcfg0].pmp0cfg;
pmp1cfg
- Location
-
pmpcfg0[15:8] - Description
-
PMP configuration for entry 1
The bits are as follows:
Name
Location
Description +
L
15
Locks the entry from further modification. Additionally, when set, PMP checks also apply to M-mode for the entry.
-
14:13
Reserved Writes shall be ignored.
A
12:11
Address matching mode. One of:
+ [when="PMP_GRANULARITY < 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NA4 (2) - Naturally aligned four-byte region * NAPOT (3) - Natrually aligned power of two
+ [when="PMP_GRANULARITY >= 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NAPOT (3) - Natrually aligned power of two
+
Naturally aligned four-byte region, NA4 (2), is not valid (not needed when the PMP granularity is larger than 4 bytes).
+
X
10
When clear, instruction fetchs cause an
Access Faultfor the matching region and privilege mode.W
9
When clear, stores and AMOs cause an
Access Faultfor the matching region and privilege mode.R
8
When clear, loads cause an
Access Faultfor the matching region and privilege mode.The combination of R = 0, W = 1 is reserved.
- Type
RW-R |
Read-Write Restricted Field is writable by software. Only certain values are legal. Writing an illegal value into the field is ignored, and the field retains its prior state. |
- Reset value
-
UNDEFINED_LEGAL
- Software write
-
This field has special behavior when written by software (e.g., through csrrw).
When software tries to write
csr_value, the field will be written with the return value of the function below.if ((CSR[pmpcfg0].pmp1cfg) == 0) { if (! { if ((false) || csr_value.pmp1cfg & 0x18) != 0x10 { return csr_value.pmp1cfg; } } } return CSR[pmpcfg0].pmp1cfg;
pmp2cfg
- Location
-
pmpcfg0[23:16] - Description
-
PMP configuration for entry 2
The bits are as follows:
Name
Location
Description +
L
23
Locks the entry from further modification. Additionally, when set, PMP checks also apply to M-mode for the entry.
-
22:21
Reserved Writes shall be ignored.
A
20:19
Address matching mode. One of:
+ [when="PMP_GRANULARITY < 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NA4 (2) - Naturally aligned four-byte region * NAPOT (3) - Natrually aligned power of two
+ [when="PMP_GRANULARITY >= 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NAPOT (3) - Natrually aligned power of two
+
Naturally aligned four-byte region, NA4 (2), is not valid (not needed when the PMP granularity is larger than 4 bytes).
+
X
18
When clear, instruction fetchs cause an
Access Faultfor the matching region and privilege mode.W
17
When clear, stores and AMOs cause an
Access Faultfor the matching region and privilege mode.R
16
When clear, loads cause an
Access Faultfor the matching region and privilege mode.The combination of R = 0, W = 1 is reserved.
- Type
RW-R |
Read-Write Restricted Field is writable by software. Only certain values are legal. Writing an illegal value into the field is ignored, and the field retains its prior state. |
- Reset value
-
UNDEFINED_LEGAL
- Software write
-
This field has special behavior when written by software (e.g., through csrrw).
When software tries to write
csr_value, the field will be written with the return value of the function below.if ((CSR[pmpcfg0].pmp2cfg) == 0) { if (! { if ((false) || csr_value.pmp2cfg & 0x18) != 0x10 { return csr_value.pmp2cfg; } } } return CSR[pmpcfg0].pmp2cfg;
pmp3cfg
- Location
-
pmpcfg0[31:24] - Description
-
PMP configuration for entry 3
The bits are as follows:
Name
Location
Description +
L
31
Locks the entry from further modification. Additionally, when set, PMP checks also apply to M-mode for the entry.
-
30:29
Reserved Writes shall be ignored.
A
28:27
Address matching mode. One of:
+ [when="PMP_GRANULARITY < 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NA4 (2) - Naturally aligned four-byte region * NAPOT (3) - Natrually aligned power of two
+ [when="PMP_GRANULARITY >= 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NAPOT (3) - Natrually aligned power of two
+
Naturally aligned four-byte region, NA4 (2), is not valid (not needed when the PMP granularity is larger than 4 bytes).
+
X
26
When clear, instruction fetchs cause an
Access Faultfor the matching region and privilege mode.W
25
When clear, stores and AMOs cause an
Access Faultfor the matching region and privilege mode.R
24
When clear, loads cause an
Access Faultfor the matching region and privilege mode.The combination of R = 0, W = 1 is reserved.
- Type
RW-R |
Read-Write Restricted Field is writable by software. Only certain values are legal. Writing an illegal value into the field is ignored, and the field retains its prior state. |
- Reset value
-
UNDEFINED_LEGAL
- Software write
-
This field has special behavior when written by software (e.g., through csrrw).
When software tries to write
csr_value, the field will be written with the return value of the function below.if ((CSR[pmpcfg0].pmp3cfg) == 0) { if (! { if ((false) || csr_value.pmp3cfg & 0x18) != 0x10 { return csr_value.pmp3cfg; } } } return CSR[pmpcfg0].pmp3cfg;
pmp4cfg
- Location
-
pmpcfg0[39:32] - Description
-
PMP configuration for entry 4
The bits are as follows:
Name
Location
Description +
L
39
Locks the entry from further modification. Additionally, when set, PMP checks also apply to M-mode for the entry.
-
38:37
Reserved Writes shall be ignored.
A
36:35
Address matching mode. One of:
+ [when="PMP_GRANULARITY < 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NA4 (2) - Naturally aligned four-byte region * NAPOT (3) - Natrually aligned power of two
+ [when="PMP_GRANULARITY >= 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NAPOT (3) - Natrually aligned power of two
+
Naturally aligned four-byte region, NA4 (2), is not valid (not needed when the PMP granularity is larger than 4 bytes).
+
X
34
When clear, instruction fetchs cause an
Access Faultfor the matching region and privilege mode.W
33
When clear, stores and AMOs cause an
Access Faultfor the matching region and privilege mode.R
32
When clear, loads cause an
Access Faultfor the matching region and privilege mode.The combination of R = 0, W = 1 is reserved.
- Type
RW-R |
Read-Write Restricted Field is writable by software. Only certain values are legal. Writing an illegal value into the field is ignored, and the field retains its prior state. |
- Reset value
-
UNDEFINED_LEGAL
- Software write
-
This field has special behavior when written by software (e.g., through csrrw).
When software tries to write
csr_value, the field will be written with the return value of the function below.if ((CSR[pmpcfg0].pmp4cfg) == 0) { if (! { if ((false) || csr_value.pmp4cfg & 0x18) != 0x10 { return csr_value.pmp4cfg; } } } return CSR[pmpcfg0].pmp4cfg;
pmp5cfg
- Location
-
pmpcfg0[47:40] - Description
-
PMP configuration for entry 5
The bits are as follows:
Name
Location
Description +
L
47
Locks the entry from further modification. Additionally, when set, PMP checks also apply to M-mode for the entry.
-
46:45
Reserved Writes shall be ignored.
A
44:43
Address matching mode. One of:
+ [when="PMP_GRANULARITY < 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NA4 (2) - Naturally aligned four-byte region * NAPOT (3) - Natrually aligned power of two
+ [when="PMP_GRANULARITY >= 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NAPOT (3) - Natrually aligned power of two
+
Naturally aligned four-byte region, NA4 (2), is not valid (not needed when the PMP granularity is larger than 4 bytes).
+
X
42
When clear, instruction fetchs cause an
Access Faultfor the matching region and privilege mode.W
41
When clear, stores and AMOs cause an
Access Faultfor the matching region and privilege mode.R
40
When clear, loads cause an
Access Faultfor the matching region and privilege mode.The combination of R = 0, W = 1 is reserved.
- Type
RW-R |
Read-Write Restricted Field is writable by software. Only certain values are legal. Writing an illegal value into the field is ignored, and the field retains its prior state. |
- Reset value
-
UNDEFINED_LEGAL
- Software write
-
This field has special behavior when written by software (e.g., through csrrw).
When software tries to write
csr_value, the field will be written with the return value of the function below.if ((CSR[pmpcfg0].pmp5cfg) == 0) { if (! { if ((false) || csr_value.pmp5cfg & 0x18) != 0x10 { return csr_value.pmp5cfg; } } } return CSR[pmpcfg0].pmp5cfg;
pmp6cfg
- Location
-
pmpcfg0[55:48] - Description
-
PMP configuration for entry 6
The bits are as follows:
Name
Location
Description +
L
55
Locks the entry from further modification. Additionally, when set, PMP checks also apply to M-mode for the entry.
-
54:53
Reserved Writes shall be ignored.
A
52:51
Address matching mode. One of:
+ [when="PMP_GRANULARITY < 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NA4 (2) - Naturally aligned four-byte region * NAPOT (3) - Natrually aligned power of two
+ [when="PMP_GRANULARITY >= 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NAPOT (3) - Natrually aligned power of two
+
Naturally aligned four-byte region, NA4 (2), is not valid (not needed when the PMP granularity is larger than 4 bytes).
+
X
50
When clear, instruction fetchs cause an
Access Faultfor the matching region and privilege mode.W
49
When clear, stores and AMOs cause an
Access Faultfor the matching region and privilege mode.R
48
When clear, loads cause an
Access Faultfor the matching region and privilege mode.The combination of R = 0, W = 1 is reserved.
- Type
RW-R |
Read-Write Restricted Field is writable by software. Only certain values are legal. Writing an illegal value into the field is ignored, and the field retains its prior state. |
- Reset value
-
UNDEFINED_LEGAL
- Software write
-
This field has special behavior when written by software (e.g., through csrrw).
When software tries to write
csr_value, the field will be written with the return value of the function below.if ((CSR[pmpcfg0].pmp6cfg) == 0) { if (! { if ((false) || csr_value.pmp6cfg & 0x18) != 0x10 { return csr_value.pmp6cfg; } } } return CSR[pmpcfg0].pmp6cfg;
pmp7cfg
- Location
-
pmpcfg0[63:56] - Description
-
PMP configuration for entry 7
The bits are as follows:
Name
Location
Description +
L
63
Locks the entry from further modification. Additionally, when set, PMP checks also apply to M-mode for the entry.
-
62:61
Reserved Writes shall be ignored.
A
60:59
Address matching mode. One of:
+ [when="PMP_GRANULARITY < 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NA4 (2) - Naturally aligned four-byte region * NAPOT (3) - Natrually aligned power of two
+ [when="PMP_GRANULARITY >= 2"] * OFF (0) - Null region (disabled) * TOR (1) - Top of range * NAPOT (3) - Natrually aligned power of two
+
Naturally aligned four-byte region, NA4 (2), is not valid (not needed when the PMP granularity is larger than 4 bytes).
+
X
58
When clear, instruction fetchs cause an
Access Faultfor the matching region and privilege mode.W
57
When clear, stores and AMOs cause an
Access Faultfor the matching region and privilege mode.R
56
When clear, loads cause an
Access Faultfor the matching region and privilege mode.The combination of R = 0, W = 1 is reserved.
- Type
RW-R |
Read-Write Restricted Field is writable by software. Only certain values are legal. Writing an illegal value into the field is ignored, and the field retains its prior state. |
- Reset value
-
UNDEFINED_LEGAL
- Software write
-
This field has special behavior when written by software (e.g., through csrrw).
When software tries to write
csr_value, the field will be written with the return value of the function below.if ((CSR[pmpcfg0].pmp7cfg) == 0) { if (! { if ((false) || csr_value.pmp7cfg & 0x18) != 0x10 { return csr_value.pmp7cfg; } } } return CSR[pmpcfg0].pmp7cfg;