MC908AS60ACFN Freescale Semiconductor, MC908AS60ACFN Datasheet - Page 276

• Manufacturer Part Number: MC908AS60ACFN
• Description: IC MCU 60K FLASH 8.4MHZ 52PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908AS60ACFN

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8.4MHz
• Connectivity: CAN, SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 42
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K 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: 52-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MSCAN Controller (MSCAN08)
23.8.1 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:
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•
•
•
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.
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
1. ‘X’ means don’t care.
Table 23-2. MSCAN08 versus CPU Operating Modes
or MSCAN08
MSCAN Mode
Figure 23-6. Sleep Request/Acknowledge Cycle
MCU
Power Down
Soft Reset
Normal
Sleep
MSCAN08 Sleeping
SLPRQ = 1
SLPAK = 1
Figure
23-6). 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
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