MC68HC908AB32CFU Freescale Semiconductor, MC68HC908AB32CFU Datasheet - Page 162

• Manufacturer Part Number: MC68HC908AB32CFU
• Description: IC MCU 8MHZ 32K FLASH 64-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908AB32CFU

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM
• Number Of I /o: 51
• 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 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Monitor ROM (MON)
10.4.3 Echoing
10.4.4 Break Signal
Technical Data
162
As shown in
received byte back to the PTA0 pin for error checking.
Any result of a command appears after the echo of the last byte of the
command.
A start bit followed by nine low bits is a break signal. (See
When the monitor receives a break signal, it drives the PTA0 pin high for
the duration of two bits before echoing the break signal.
SENT TO
MONITOR
ECHO
0
1
READ
Figure
2
Monitor ROM (MON)
3
MISSING STOP BIT
Figure 10-5. Break Transaction
Figure 10-4. Read Transaction
4
10-4, the monitor ROM immediately echoes each
READ
5
6
ADDR. HIGH
7
ADDR. HIGH ADDR. LOW ADDR. LOW
TWO-STOP-BIT DELAY BEFORE ZERO ECHO
0
MC68HC908AB32
1
Freescale Semiconductor
2
3
4
Figure
5
—
RESULT
6
DATA
Rev. 1.1
10-5.)
7