N80960SB16 Intel, N80960SB16 Datasheet - Page 8

• Manufacturer Part Number: N80960SB16
• Description: IC MPU I960SB 16MHZ 84-PLCC
• Manufacturer: Intel

Specifications of N80960SB16

• Rohs Status: RoHS non-compliant
• Processor Type: i960
• Features: SB suffix, 32-Bit, 512 Byte Cache
• Speed: 16MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 84-PLCC
• Other names: 803883

80960SB
1.1.1
The
environment so that all programs running on the
processor are contained in a single address space.
Maximum address space size is 4 Gigabytes (2
bytes).
For ease of use the 80960SB has a small number of
addressing modes, but includes all those necessary
to ensure efficient execution of high-level languages
such as C. Table 2 lists the memory addressing
modes.
4
•
•
•
•
•
•
•
•
Scale-Factor is 1, 2, 4, 8 or 16
12-Bit Offset
32-Bit Offset
Register-Indirect
Register + 12-Bit Offset
Register + 32-Bit Offset
Register + (Index-Register x Scale-Factor)
Register x Scale Factor + 32-Bit Displacement
Register + (Index-Register x Scale-Factor) +
32-Bit Displacement
80960SB
Table 2. Memory Addressing Modes
Memory Space And Addressing Modes
Control
Compare and
Branch
Register to
Register
Memory Access---
Short
Memory Access---
Long
offers
a
linear
Opcode
Opcode
Opcode
Opcode
Opcode
Figure 3. Instruction Formats
programming
Reg/Lit
Reg
Reg
Reg
32
Reg
Reg/Lit
Base
Base
1.1.2
The 80960SB recognizes the following data types:
Numeric:
•
•
•
Non-Numeric:
•
•
•
•
1.1.3
The 80960SB programming environment includes a
large number of registers. In fact, 32 registers are
available at any time. The availability of this many
registers greatly reduces the number of memory
accesses required to perform algorithms, which
leads to greater instruction processing speed.
There are two types of general-purpose register:
local and global. The global registers consist of
sixteen 32-bit registers (g0 though g15) and four
Displacement
8-, 16-, 32- and 64-bit ordinals
8-, 16-, 32- and 64-bit integers
32-, 64- and 80-bit real numbers
Bit
Bit Field
Triple Word (96 bits)
Quad-Word (128 bits)
M
M
Modes
Mode
Data Types
Large Register Set
Displacement
X
Scale
Displacement
Ext’d Op
xx
Offset
Reg/Lit
Offset