MC68332GCEH16 Freescale Semiconductor, MC68332GCEH16 Datasheet - Page 173

• Manufacturer Part Number: MC68332GCEH16
• Description: IC MCU 32BIT 16MHZ 132-PQFP
• Manufacturer: Freescale Semiconductor
• Series: M683xxr

Specifications of MC68332GCEH16

• Core Processor: CPU32
• Core Size: 32-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, SCI, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Type: ROMless
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 132-QFP
• Cpu Family: 68K/M683xx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 16MHz
• Interface Type: QSPI/SCI/UART
• Program Memory Size: Not Required
• Total Internal Ram Size: 2KB
• # I/os (max): 15
• Number Of Timers - General Purpose: 16
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 132
• Package Type: PQFP
• Controller Family/series: 68K
• No. Of I/o's: 15
• Ram Memory Size: 2KB
• Cpu Speed: 16MHz
• No. Of Timers: 16
• Embedded Interface Type: QSPI, SCI, UART
• Digital Ic Case Style: PQFP
• Rohs Compliant: Yes
• Processor Series: M683xx
• Core: CPU32
• Data Bus Width: 32 bit
• Data Ram Size: 2 KB
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 16
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Compliant

8.7 Low-Power Stop Operation
8.8 Reset
8.9 TPU Microcode Emulation
MC68332
USER’S MANUAL
itance, V
current must be known. Assuming that the rate of change is constant as V
from 0.0 V to 5.5 V (nominal V
period, capacitance is calculated using the following expression:
Where:
Setting the STOP bit in the TRAMMCR switches the TPURAM module to low-power
mode. In low-power mode, the array retains its contents, but cannot be read or written
by the CPU. STOP can be written only when the processor is operating at the super-
visor privilege level. STOP is set during reset. Stop mode is exited by clearing STOP.
The TPURAM module will switch to standby mode while it is in low-power mode, pro-
vided the operating constraints discussed above are met.
Reset places the TPURAM in low-power mode, enables supervisor-level access only,
clears the base address, and disables the array. These actions make it possible to
write a new base address into the base address register.
When a synchronous reset occurs while a byte or word TPURAM access is in
progress, the access is completed. If reset occurs during the first word access of a
long-word operation, only the first word access is completed. If reset occurs during the
second word access of a long-word operation, the entire access is completed. Data
being read from or written to the TPURAM may be corrupted by asynchronous reset.
Refer to SECTION 4 SYSTEM INTEGRATION MODULE for more information con-
cerning resets.
The TPURAM array can emulate the microcode ROM in the TPU module. This pro-
vides a means of developing custom TPU code. The TPU selects TPU emulation
mode.
The TPU is connected to the TPURAM via a dedicated bus. While the TPURAM array
is in TPU emulation mode, the access timing of the TPURAM module matches the tim-
ing of the TPU microinstruction ROM to ensure accurate emulation. Normal accesses
through the IMB are inhibited and the control registers have no effect, allowing external
RAM to emulate the TPURAM at the same addresses. Refer to SECTION 7 TIME
PROCESSOR UNIT and to the TPU Reference Manual (TPURM/AD) for more infor-
mation.
C = Desired capacitance
V = V
I = I
t = time of maximum I
SB
SB
DD
differential (Transient I
differential (Available supply voltage – Specified minimum V
supply ramp time, available standby voltage, and available standby
Freescale Semiconductor, Inc.
For More Information On This Product,
STANDBY RAM WITH TPU EMULATION
SB
(Typically in the range V
Go to: www.freescale.com
SS
to nominal V
SB
– Available supply current)
C
=
DD
--- -
V
It
) and that V
SB
– 1.5 V
SB
also drops during this
0.5 V)
SB
DD
)
changes
8-3