MC68376BGMAB20 Freescale Semiconductor, MC68376BGMAB20 Datasheet - Page 54

• Manufacturer Part Number: MC68376BGMAB20
• Description: IC MCU 32BIT 8K ROM 160-QFP
• Manufacturer: Freescale Semiconductor
• Series: M683xxr

Specifications of MC68376BGMAB20

• Core Processor: CPU32
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 18
• Program Memory Type: ROMless
• Ram Size: 7.5K x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 160-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

4.2 CPU32 Registers
4-2
MOTOROLA
The CPU32 programming model consists of two groups of registers that correspond
to the user and supervisor privilege levels. User programs can use only the registers
of the user model. The supervisor programming model, which supplements the user
programming model, is used by CPU32 system programmers who wish to protect sen-
sitive operating system functions. The supervisor model is identical to that of the
MC68010 and later processors.
The CPU32 has eight 32-bit data registers, seven 32-bit address registers, a 32-bit
program counter, separate 32-bit supervisor and user stack pointers, a 16-bit status
register, two alternate function code registers, and a 32-bit vector base register. Refer
to Figures 4-2 and 4-3.
MICROSEQUENCER AND CONTROL
CONTROL STORE
CONTROL LOGIC
Figure 4-1 CPU32 Block Diagram
ADDRESS
BUS
CENTRAL PROCESSOR UNIT
STAGE
C
WRITE PENDING
PROGRAM
COUNTER
SECTION
BUFFER
DECODE
INSTRUCTION PIPELINE
EXECUTION UNIT
BUS CONTROL
CONTROLLER
MICROBUS
STAGE
SIGNALS
B
CONTROLLER
PREFETCH
SECTION
DATA
BUFFER
STAGE
A
USER’S MANUAL
MC68336/376
DATA
BUS
1127A