MC908AZ32ACFU Freescale Semiconductor, MC908AZ32ACFU Datasheet - Page 272

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MC908AZ32ACFU

Manufacturer Part Number
MC908AZ32ACFU
Description
IC MCU 32K FLASH 8.4MHZ 64-QFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet

Specifications of MC908AZ32ACFU

Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
40
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 15x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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MSCAN Controller (MSCAN08)
24.8.1 MSCAN08 Sleep Mode
The CPU can request the MSCAN08 to enter the low-power mode by asserting the SLPRQ bit in the
module configuration register (see
depends on its activity:
272
if it is transmitting, it continues to transmit until there is no more message to be transmitted, and
then goes into Sleep mode
if it is receiving, it waits for the end of this message and then goes into Sleep mode
if it is neither transmitting or receiving, it will immediately go into Sleep mode
The application software must avoid setting up a transmission (by clearing
or more TXE flags) and immediately request Sleep mode (by setting
SLPRQ). It then depends on the exact sequence of operations whether
MSCAN08 starts transmitting or goes into Sleep mode directly.
1. ‘X’ means don’t care.
or MSCAN08
MSCAN Mode
Power Down
Soft Reset
MCU
Normal
Figure 24-6. Sleep Request/Acknowledge Cycle
Table 24-2. MSCAN08 vs CPU Operating Modes
Sleep
MSCAN08 Sleeping
SLPRQ = 1
SLPAK = 1
Figure
MC68HC908AZ32A Data Sheet, Rev. 2
24-6). The time when the MSCAN08 enters Sleep mode
MSCAN08 Running
SLPAK = X
SFTRES = X
SLPRQ = 0
SLPAK = 0
MSCAN08
NOTE
STOP
(1)
CPU Mode
Sleep Request
SLPRQ = 1
SLPAK = 0
WAIT or RUN
SFTRES = 0
SFTRES = 1
SFTRES = 0
SLPAK = 1
SLPAK = 0
SLPAK = 0
MCU
Freescale Semiconductor

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