MC908GZ32VFAER Freescale Semiconductor, MC908GZ32VFAER Datasheet - Page 226
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MC908GZ32VFAER
Manufacturer Part Number
MC908GZ32VFAER
Description
IC MCU 8BIT 32K FLASH 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GZ60CFJE.pdf
(352 pages)
Specifications of MC908GZ32VFAER
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908GZ32VFAER
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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System Integration Module (SIM)
15.3.2.1 Power-On Reset
When power is first applied to the MCU, the power-on reset module (POR) generates a pulse to indicate
that power-on has occurred. The external reset pin (RST) is held low while the SIM counter counts out
4096 + 32 CGMXCLK cycles. Thirty-two CGMXCLK cycles later, the CPU and memories are released
from reset to allow the reset vector sequence to occur.
At power-on, these events occur:
15.3.2.2 Computer Operating Properly (COP) Reset
An input to the SIM is reserved for the COP reset signal. The overflow of the COP counter causes an
internal reset and sets the COP bit in the SIM reset status register (SRSR) if the COPD bit in the CONFIG1
register is cleared. The SIM actively pulls down the RST pin for all internal reset sources.
The COP module is disabled if the RST pin or the IRQ pin is held at V
mode. During a break state, V
226
•
•
•
•
•
•
A POR pulse is generated.
The internal reset signal is asserted.
The SIM enables CGMOUT.
Internal clocks to the CPU and modules are held inactive for 4096 CGMXCLK cycles to allow
stabilization of the oscillator.
The RST pin is driven low during the oscillator stabilization time.
The POR bit of the SIM reset status register (SRSR) is set.
CGMXCLK
RST
IAB
MC68HC908GZ60 • MC68HC908GZ48 • MC68HC908GZ32 Data Sheet, Rev. 6
Reset Recovery Type
TST
Figure 15-6. Sources of Internal Reset
All others
POR/LVI
ILLEGAL ADDRESS RST
RST PULLED LOW BY MCU
ILLEGAL OPCODE RST
Figure 15-5. Internal Reset Timing
on the RST pin disables the COP module.
32 CYCLES
Table 15-2. Reset Recovery
MODRST
COPRST
POR
LVI
Actual Number of Cycles
32 CYCLES
4163 (4096 + 64 + 3)
INTERNAL RESET
67 (64 + 3)
TST
while the MCU is in monitor
VECTOR HIGH
Freescale Semiconductor
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