MC68HC000EI8R2 Freescale Semiconductor, MC68HC000EI8R2 Datasheet - Page 17
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MC68HC000EI8R2
Manufacturer Part Number
MC68HC000EI8R2
Description
IC MPU 16BIT 8MHZ 68-PLCC
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68HC000IEI16.pdf
(189 pages)
Specifications of MC68HC000EI8R2
Processor Type
M680x0 32-Bit
Speed
8MHz
Voltage
3.3V, 5V
Mounting Type
Surface Mount
Package / Case
68-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
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tables. The SFC and DFC registers allow the supervisor to access user data space or
emulate CPU space cycles.
2.1.3 Status Register
The status register (SR),contains the interrupt mask (eight levels available) and the
following condition codes: overflow (V), zero (Z), negative (N), carry (C), and extend (X).
Additional status bits indicate that the processor is in the trace (T) mode and/or in the
supervisor (S) state (see Figure 2-4). Bits 5, 6, 7, 11, 12, and 14 are undefined and
reserved for future expansion
2.2
The five basic data types supported are as follows:
MOTOROLA
1. Bits
2. Binary-Coded-Decimal (BCD) Digits (4 Bits)
3. Bytes (8 Bits)
4. Words (16 Bits)
5. Long Words (32 Bits)
TRACE MODE
DATA TYPES AND ADDRESSING MODES
SUPERVISOR
INTERRUPT
STATE
MASK
31
31
Figure 2-3. Supervisor Programmer's Model Supplement
M68000 8-/16-/32-BIT MICROPROCESSOR USER’S MANUAL
15
T
Freescale Semiconductor, Inc.
For More Information On This Product,
13
SYSTEM BYTE
S
Figure 2-4. Status Register
16 15
Go to: www.freescale.com
15
10
I
2
I
1 0
(MC68010)
I
8
8 7
USER BYTE
CCR
2
4
X N Z V C
0
0
0
0
A7'
(SSP)
SR
VBR
SFC
DFC
0
STATUS REGISTER
VECTOR BASE REGISTER
ALTERNATE FUNCTION
CODE REGISTERS
SUPERVISOR STACK
POINTER
OVERFLOW
EXTEND
NEGATIVE
ZERO
CARRY
CONDITION
CODES
2-3
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