MC68HC912B32CFU8 Freescale Semiconductor, MC68HC912B32CFU8 Datasheet - Page 214

• Manufacturer Part Number: MC68HC912B32CFU8
• Description: IC MCU 32K FLASH 8MHZ 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC12r

Specifications of MC68HC912B32CFU8

• Core Processor: CPU12
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 63
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 768 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Byte Data Link Communications (BDLC)
15.4 BDLC Operating Modes
The BDLC has five main modes of operation which interact with the power supplies, pins, and rest of the
MCU as shown in
214
NETWORK ACTIVITY OR
OTHER MCU WAKEUP
BDLC STOP
Figure
(COP, ILLADDR, PU, RESET, LVR, POR)
ANY MCU RESET SOURCE ASSERTED
Figure 15-2. BDLC Operating Modes State Diagram
15-2.
V
DD
STOP INSTRUCTION OR
WAIT INSTRUCTION AND WCM = 1
≤ V
FROM ANY MODE
DD
(MINIMUM)
Figure 15-1. BDLC Block Diagram
M68HC12B Family Data Sheet, Rev. 9.1
PHYSICAL INTERFACE
POWER OFF
PROTOCOL HANDLER
MUX INTERFACE
CPU INTERFACE
TO J1850 BUS
RESET
RUN
TO CPU
V
ANY MCU RESET SOURCE ASSERTED
DD
NO MCU RESET SOURCE ASSERTED
WAIT INSTRUCTION AND WCM = 0
> V
BDLC
DD
(MINIMUM) AND
NETWORK ACTIVITY OR
OTHER MCU WAKEUP
BDLC WAIT
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