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参数资料
| 型号： | 5962-9855202QXX |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 16 MHz, RISC MICROCONTROLLER, CPGA144 |
| 封装： | CERAMIC, PGA-144 |
| 文件页数： | 30/64页 |
| 文件大小： | 1464K |
| 代理商： | 5962-9855202QXX |
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36
Special Purpose Data Registers
In addition to the 20 general purpose data registers, the
UT69R000 has three special purpose data registers: (1) The
ACCUMULATOR (ACC); (2) the Stack Pointer (SP); and (3)
the Instruction Counter Save Register (ICS).
The Accumulator (ACC) is a 32-bit register used only with
multiply, divide, extended shift, Load Register from
Instruction memory (LRI), and Store Register to Instruction
memory (STRI) instructions. For multiply instructions, the
ACC retains the most significant half of the product, and for
divide instructions, the ACC retains the remainder. For LRI
and STRI instructions, the ACC contains the instruction
memory pointer. Note that the ACC can be used as a general
purpose register for most operations.
The Stack Pointer (SP) is a 16-bit register usable only with POP
and PUSH instructions.
The Instruction Counter Save (ICS) register is a 20-bit register
used during calls, jumps, and interrupts.
Register Notation
The UT69R000’s instruction descriptions contain a definition
of the Register Transfer Language (RTL) that the Assembler
uses to describe how the instructions operate. The RTL
description of the UT69R000’s internal registers is as follows:
RSn
-- Source Register where n specifies the
register number.
RDn -- Destination Register where n specifies the
register number.
XRSn -- Long-Data Source Register where n specifies the
register number.
XRDn -- Long-Data Destination Register where n specifies
the register number.
IC
-- Instruction Counter
SP
-- Stack Pointer
ACC -- 32 bit Accumulator
ICS
-- Instruction Counter Store Register
@RSn-- Data Register Indirect where n specifies the
register number
@SP -- Stack Pointer Indirect
#
-- Immediate Data
@#
-- Immediate Data Indirect
9.2 Instruction Formats
The UT69R000 has three instruction formats (figure 32): (1)
Register-to-Register; (2) Register-to-Short Immediate; and (3)
Register-to-Immediate.
All the UT69R000’s instructions are either word (16-bit) or
long-word (32-bit) in length. The only time the UT69R000 uses
the long-word instruction format is for the Immediate Source
Operand Address Mode.
The bits in the instructions are defined as follows:
M: Instruction Mode Bit. When M = 1, the UT69R000
interprets the Instruction Source field as a five-bit literal
value. If M = 0, the UT69R000 uses the Instruction Source
field to specify the source register for the instruction.
Opcode: This field is the five-bit opcode the UT69R000
uses to decode the instruction into a machine operation.
0
4
5
9
10
14
15
Figure 31b. Register to-Short Immediate
0
4
5
9
10
14
15
Figure 31a. Register to-Register Instruction
Figure 31c. Register Immediate Instruction Format
MSB
LSB
MODE
OPCODE
DESTINATION
SOURCE
0
XXXXX
RD
RS
MODE
OPCODE
DESTINATION
SOURCE
MSB
LSB
1
XXXXX
RD
IMMEDIATE
MODE
MSB
OPCODE
DESTINATION
SOURCE
LSB
0
XXXXX
RD
11111
0
4
5
9
10
14
15
16-Bit Immediate Data
15
0
MSB
LSB
Instruction Format
相关PDF资料 |
PDF描述 |
|---|---|
| 5962F9855202QXA | 32-BIT, 16 MHz, RISC MICROCONTROLLER, CPGA144 |
| 5962G9855201QXX | 32-BIT, 12 MHz, RISC MICROCONTROLLER, CPGA144 |
| 5962G9855202VXA | 32-BIT, 16 MHz, RISC MICROCONTROLLER, CPGA144 |
| 5962G9855202VXX | 32-BIT, 16 MHz, RISC MICROCONTROLLER, CPGA144 |
| 5962H9855201VXC | 32-BIT, 12 MHz, RISC MICROCONTROLLER, CPGA144 |
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