MCR908JK3MDWE Freescale Semiconductor, MCR908JK3MDWE Datasheet - Page 175
MCR908JK3MDWE
Manufacturer Part Number
MCR908JK3MDWE
Description
IC MCU 4K FLASH 20-SOIC
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68HC908JK1CDW.pdf
(212 pages)
Specifications of MCR908JK3MDWE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LED, LVD, POR, PWM
Number Of I /o
15
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 12x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
20-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
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15.1 Contents
15.2 Introduction
MC68H(R)C908JL3
Freescale Semiconductor
Technical Data — MC68H(R)C908JL3
Section 15. Computer Operating Properly (COP)
—
Rev. 1.1
15.2
15.3
15.4
15.4.1
15.4.2
15.4.3
15.4.4
15.4.5
15.4.6
15.4.7
15.5
15.6
15.7
15.8
15.8.1
15.8.2
15.9
The computer operating properly (COP) module contains a free-running
counter that generates a reset if allowed to overflow. The COP module
helps software recover from runaway code. Prevent a COP reset by
clearing the COP counter periodically. The COP module can be disabled
through the COPD bit in the CONFIG1 register.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .174
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
COP Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .177
Monitor Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .177
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
COP Module During Break Mode . . . . . . . . . . . . . . . . . . . . . . 178
Computer Operating Properly (COP)
2OSCOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175
COPCTL Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175
Power-On Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Internal Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Reset Vector Fetch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
COPD (COP Disable). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
COPRS (COP Rate Select) . . . . . . . . . . . . . . . . . . . . . . . . 176
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .177
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .178
Technical Data
173
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