MC68HC000RC8 Freescale Semiconductor, MC68HC000RC8 Datasheet - Page 17

• Manufacturer Part Number: MC68HC000RC8
• Description: IC MPU 32BIT 8MHZ 68-PGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC000RC8

• Processor Type: M680x0 32-Bit
• Speed: 8MHz
• Voltage: 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

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
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13
SYSTEM BYTE
S
Figure 2-4. Status Register
16 15
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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