DS631 Datasheet, PDF (5/9 Pages) Xilinx, Inc – Configurable number of PLB interfaces from 1 to 8

XPS Mutex (v1.00c)
Table 2: XPS Mutex Design Parameters (Contd)
Generic Feature/Description Parameter Name
Allowable Values
Default
Value
VHDL
Type
G13
Number of PLB
interfaces
C_NUM_PLB
1-8
1
Integer
If the 32-bit USER
G14
register associated with a
mutex should be
C_ENABLE_USER
available
0-1
32
Integer
G15
Number of bits used for C_OWNER_ID_WID
the CPUID field
TH
8
8
Integer
If hardware protection of
G16
a mutex should be
enabled besides the
C_ENABLE_HW_P
ROT
CPUID (if available)
0-1
0
Integer
Number of mutexes that
G17 shall be contained inside C_NUM_MUTEX
the core
1-
16
Integer
Notes:
1. The user must set the values. The C_BASEADDR must be a multiple of the range, where the range is
C_HIGHADDR - C_BASEADDR + 1.
2. C_HIGHADDR - C_BASEADDR must be a power of 2 greater than equal to C_BASEADDR + 0xF.
3. No default value will be specified to insure that the actual value is set, i.e., if the value is not set, a compiler
error will be generated.
4. Value of ’1’ is not supported in this core.
Allowable Parameter Combinations
The address range specified by C_BASEADDR and C_HIGHADDR must be a power of 2, and must be
at least 0xF.
For example, if C_BASEADDR = 0xE0000000, C_HIGHADDR must be at least = 0xE000000F.
XPS Mutex Parameter - Port Dependencies
The dependencies between the XPS Mutex core design parameters and I/O signals are described in
Table 3. In addition, when certain features is deselected, the related logic will no longer be a part of the
design. The unused input and output signals are set to a specified value.
.
Table 3: XPS Mutex Parameter-Port Dependencies
Generic
or Port
Name
Affects Depends Relationship Description
Design Parameters
G5 C_SPLB<x>_DWIDTH
P7, P10, P33
-
Affects the number of bits in data
bus
G7 C_SPLB<x>_MID_WIDTH
This value is calculated as:
P5
G8
log₂(C_SPLB<x>_NUM_MASTER
S) with a minimum value of 1
G8
C_SPLB<x>_NUM_MASTERS
P36, P37,
P38, P42
-
Affects the number of PLB masters
DS631 June 24, 2009
www.xilinx.com
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Product Specification