MC68HC000RC12 Freescale Semiconductor, MC68HC000RC12 Datasheet - Page 63

• Manufacturer Part Number: MC68HC000RC12
• Description: IC MPU 32BIT 12MHZ 68-PGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC000RC12

• Processor Type: M680x0 32-Bit
• Speed: 12MHz
• Voltage: 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PGA
• Family Name: M68000
• Device Core: ColdFire
• Device Core Size: 16/32Bit
• Frequency (max): 12MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 68
• Package Type: PGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Compliant

Figures 5-19, 5-20, and 5-21 applies to all processors using 3-wire bus arbitration. Figures
5-22, 5-23, and 5-24 applies to all processors using 2-wire bus arbitration.
MOTOROLA
G = Bus Grant
R = Bus Request Internal
A = Bus Grant Acknowledge Internal
T = Three-state Control to Bus Control Logic
X = Don't Care
M68000 8-/16-/32-BIT MICROPROCESSORS USER'S MANUAL
Figure 5-18. Bus Arbitration Unit State Diagrams
RA
X
STATE 2
GT
R
XX
STATE 1
GT
GT
GT
(a) 3-Wire Bus Arbitration
(b) 2-Wire Bus Arbitration
RA
XA
RA
R
RA
R
1
RA
STATE 3
STATE 0
R
GT
GT
GT
RA
GT
GT
RA
RA
R
RA
RA
R+A
XA
X
XX
R
1
STATE 4
GT
GT
GT
Notes:
RX
1. State machine will not change if
2. The address bus will be placed in
the bus is S0 or S1. Refer to
BUS ARBITRATION CONTROL.
the high-impedance state if T is
asserted and AS is negated.
RA
5.2.3.
5- 17