MC68HC908GZ8MFA Freescale Semiconductor, MC68HC908GZ8MFA Datasheet - Page 125

• Manufacturer Part Number: MC68HC908GZ8MFA
• Description: IC MCU 8K FLASH 8MHZ CAN 48-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GZ8MFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: CAN, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 37
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

12.4.3 Transmit Structures
The MSCAN08 has a triple transmit buffer scheme to allow multiple messages to be set up in advance
and to achieve an optimized real-time performance. The three buffers are arranged as shown in
Figure
All three buffers have a 13-byte data structure similar to the outline of the receive buffers (see
Programmer’s Model of Message
an 8-bit “local priority” field (PRIO) (see
Freescale Semiconductor
12-3.
MSCAN08
Figure 12-3. User Model for Message Buffer Organization
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 4
Storage). An additional transmit buffer priority register (TBPR) contains
RxBG
12.12.5 Transmit Buffer Priority
RxFG
Tx0
Tx1
Tx2
PRIO
PRIO
PRIO
RXF
TXE
TXE
TXE
CPU08 I BUS
Registers).
Message Storage
12.12
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