MC908QY2AVDWER Freescale Semiconductor, MC908QY2AVDWER Datasheet - Page 139
MC908QY2AVDWER
Manufacturer Part Number
MC908QY2AVDWER
Description
IC MCU 8BIT 1.5K FLASH 16SOIC
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908QY4MDWER.pdf
(184 pages)
Specifications of MC908QY2AVDWER
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LVD, POR, PWM
Number Of I /o
13
Program Memory Size
1.5KB (1.5K 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 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
16-SOIC (0.300", 7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
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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
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