MOD5272-100IR NetBurner Inc, MOD5272-100IR Datasheet - Page 75
![PROCESSOR MODULE FLASH MOD5272](/photos/6/75/67555/mod5272-100ir_sml.jpg)
MOD5272-100IR
Manufacturer Part Number
MOD5272-100IR
Description
PROCESSOR MODULE FLASH MOD5272
Manufacturer
NetBurner Inc
Type
Controllers & Processorsr
Datasheets
1.MOD5272-100IR.pdf
(2 pages)
2.MOD5272-100IR.pdf
(3 pages)
3.MOD5272-100IR.pdf
(550 pages)
Specifications of MOD5272-100IR
Module/board Type
Processor Module
Ethernet Connection Type
10/100 Ethernet Port RJ-45
Operating Voltage
3.3 V
Product
Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
MOD5272
For Use With
528-1001 - KIT DEVELOP NETWORK FOR MOD5272
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
528-1008
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MOTOROLA
2.2.1.3 Stack Pointer (A7, SP)
The processor core supports a single hardware stack pointer (A7) used during stacking for
subroutine calls, returns, and exception handling. The stack pointer is implicitly referenced
by certain operations and can be explicitly referenced by any instruction specifying an
address register. The initial value of A7 is loaded from the reset exception vector, address
0x0000. The same register is used for user and supervisor modes, and may be used for word
and longword operations.
A subroutine call saves the program counter (PC) on the stack and the return restores the
PC from the stack. The PC and the status register (SR) are saved on the stack during
exception and interrupt processing. The return from exception instruction restores SR and
PC values from the stack.
2.2.1.4 Program Counter (PC)
The PC holds the address of the executing instruction. For sequential instructions, the
processor automatically increments PC. When program flow changes, the PC is updated
with the target instruction. For some instructions, the PC specifies the base address for
PC-relative operand addressing modes.
2.2.1.5 Condition Code Register (CCR)
The CCR, Figure 2-4, occupies SR[7–0], as shown in Figure 2-3. CCR[4–0] are indicator
flags based on results generated by arithmetic operations.
CCR fields are described in Table 2-1.
Bits
7–5
4
3
2
1
0
Name
—
N
C
X
Z
V
Reserved, should be cleared.
Extend condition code bit. Assigned the value of the carry bit for arithmetic operations; otherwise not
affected or set to a specified result. Also used as an input operand for multiple-precision arithmetic.
Negative condition code bit. Set if the msb of the result is set; otherwise cleared.
Zero condition code bit. Set if the result equals zero; otherwise cleared.
Overflow condition code bit. Set if an arithmetic overflow occurs, implying that the result cannot be
represented in the operand size; otherwise cleared.
Carry condition code bit. Set if a carry-out of the data operand msb occurs for an addition or if a
borrow occurs in a subtraction; otherwise cleared.
Reset
Field
R/W
Figure 2-4. Condition Code Register (CCR)
7
Table 2-1. CCR Field Descriptions
000
—
R
6
Chapter 2. ColdFire Core
5
R/W
X
4
Description
R/W
N
3
Undefined
R/W
Z
2
R/W
V
1
R/W
C
0
Programming Model
2-7
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