MC68HC908QY4VDTE Freescale Semiconductor, MC68HC908QY4VDTE Datasheet - Page 139

• Manufacturer Part Number: MC68HC908QY4VDTE
• Description: IC MCU 4K FLASH 8MHZ 16-TSSOP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908QY4VDTE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 16-TSSOP
• Processor Series: HC08Q
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 14
• Number Of Timers: 2
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: FSICEBASE, M68CBL05AE, DEMO908QB8, DEMO908QC16
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 4 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

15.3.1 Functional Description
Figure 15-9
The monitor module receives and executes commands from a host computer.
and
computer via a standard RS-232 interface.
Freescale Semiconductor
PROGRAMMING
FROM
IS ENABLED)
DEBUGGING
CONDITIONS
AND FLASH
(IF FLASH
Figure 15-12
Table 15-1
shows a simplified diagram of monitor mode entry.
show example circuits used to enter monitor mode and communicate with a host
MONITOR MODE
RESET VECTOR
Figure 15-9. Simplified Monitor Mode Entry Flowchart
PTA0 = 1,
FORCED
BLANK?
YES
MC68HC908QY/QT Family Data Sheet, Rev. 6
YES
NO
NO
MONITOR MODE ENTRY
8 SECURITY BYTES
MONITOR CODE
DOES RESET
HOST SENDS
USER MODE
IS RESET
EXECUTE
POR RESET
IRQ = V
OCCUR?
NORMAL
POR?
NO
TST
?
YES
NO
YES
ENABLE FLASH
MONITOR MODE
PTA1 = 1, AND
PTA4 = 0?
PTA0 = 1,
NORMAL
YES
YES
SECURITY BYTES
CORRECT?
Figure
ARE ALL
NO
15-10,
Monitor Module (MON)
USER MODE
INVALID
DISABLE FLASH
NO
Figure
15-11,
139