IPR-NIOS Altera, IPR-NIOS Datasheet - Page 286

• Manufacturer Part Number: IPR-NIOS
• Description: IP NIOS II MEGACORE RENEW
• Manufacturer: Altera
• Type: MegaCorer

Specifications of IPR-NIOS

• License: Renewal License
• Lead Free Status / RoHS Status: Not applicable / Not applicable

8–100
wrctl
Nios II Processor Reference Handbook
Operation:
Assembler Syntax:
Example:
Description:
Exceptions:
Instruction Type:
Instruction Fields:
31
30
29
A
28
27
26
25
24
0
ctlN ← rA
wrctl ctlN, rA
wrctl ctl6, r3
Writes the value contained in register rA to the control register ctlN.
Supervisor-only instruction
R
A = Register index of operand rA
N = Control register index of operand ctlN
23
22
21
20
19
0
18
17
16
15
14
0x2e
13
12
11
10
9
write to control register
N
8
Chapter 8: Instruction Set Reference
December 2010 Altera Corporation
7
6
5
Instruction Set Reference
4
0x3a
3
2
1
0