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EM6625 Datasheet(PDF) 3 Page - EM Microelectronic - MARIN SA

Part No. EM6625
Description  Ultra Low Power Microcontroller with 4x20 LCD Driver
Download  69 Pages
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Maker  EMMICRO [EM Microelectronic - MARIN SA]
Homepage  http://www.emmicroelectronic.com
Logo EMMICRO - EM Microelectronic - MARIN SA

EM6625 Datasheet(HTML) 3 Page - EM Microelectronic - MARIN SA

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EM6625
Copyright
© 2005, EM Microelectronic-Marin SA
3
www.emmicroelectronic.com
Table of Contents
FEATURES __________________________________1
DESCRIPTION _______________________________1
TYPICAL APPLICATIONS _______________________1
EM6625 AT A GLANCE _________________________2
1.
PIN DESCRIPTION FOR EM6625 _____________4
2.
OPERATING MODES ______________________6
2.1
ACTIVE MODE __________________________6
2.2
STANDBY MODE ________________________6
2.3
SLEEP MODE __________________________6
3.
POWER SUPPLY __________________________7
4.
RESET __________________________________8
4.1
OSCILLATION DETECTION CIRCUIT ___________9
4.2
RESET TERMINAL _______________________9
4.3
INPUT PORT A RESET FUNCTION ____________9
4.4
DIGITAL WATCHDOG TIMER RESET __________10
4.5
CPU STATE AFTER RESET ________________10
5.
OSCILLATOR AND PRESCALER____________11
5.1
OSCILLATOR __________________________11
5.2
PRESCALER __________________________11
6.
INPUT AND OUTPUT PORTS _______________12
6.1
PORTS OVERVIEW ______________________12
6.2
PORT A _____________________________13
6.2.1
IRQ on Port A ____________________13
6.2.2
Pull-up or Pull-down _______________14
6.2.3
Software Test Variables ____________14
6.2.4
Port A for 10-Bit Counter and MSC ___14
6.3
PORT A REGISTERS_____________________14
6.4
PORT B _____________________________16
6.4.1
Input / Output Mode _______________16
6.4.2
Pull-up or Pull-down _______________17
6.4.3
CMOS / NCH. Open Drain Output ____17
6.4.4
PWM and Frequency Output ________18
6.5
PORT B REGISTERS_____________________18
6.6
PORT SERIAL _________________________19
6.6.1
4-bit Parallel I/O __________________19
6.6.2
Pull-up or Pull-down _______________20
6.6.3
Nch. Open Drain Outputs ___________21
6.6.4
General Functional Description ______21
6.6.5
Detailed Functional Description ______22
6.6.6
Output Modes ____________________22
6.6.7
Reset and Sleep on Port SP_________23
6.7
SERIAL INTERFACE REGISTERS_____________24
7.
MELODY, BUZZER _______________________26
7.1
4-BIT TIMER __________________________26
7.1.1
Single Run Mode _________________27
7.1.2
Continuos Run Mode ______________27
7.2
PROGRAMMING ORDER __________________28
7.3
MELODY REGISTERS ____________________28
8.
10-BIT COUNTER ________________________30
8.1
FULL AND LIMITED BIT COUNTING ___________30
8.2
FREQUENCY SELECT AND UP/DOWN COUNTING_31
8.3
EVENT COUNTING ______________________32
8.4
COMPARE FUNCTION ____________________32
8.5
PULSE WIDTH MODULATION (PWM) _________32
8.5.1
How the PWM Generator works. _____33
8.5.2
PWM Characteristics ______________33
8.6
COUNTER SETUP_______________________34
8.7
10-BIT COUNTER REGISTERS ______________ 34
9.
MILLISECOND COUNTER _________________ 36
9.1
PA[3] INPUT FOR MSC __________________ 36
9.2
IRQ FROM MSC _______________________ 36
9.3
MSC-MODES _________________________ 37
9.4
MODE SELECTION ______________________ 37
9.5
MILLISECOND COUNTER REGISTERS _________ 39
10.
INTERRUPT CONTROLLER ______________ 40
10.1
INTERRUPT CONTROL REGISTERS___________ 41
11.
SUPPLY VOLTAGE LEVEL DETECTOR ____ 42
11.1
SVLD REGISTER ______________________ 42
12.
STROBE OUTPUT______________________ 43
12.1
STROBE REGISTER _____________________ 43
13.
RAM _________________________________ 44
14.
LCD DRIVER __________________________ 45
14.1
LCD CONTROL ________________________ 46
14.2
LCD ADDRESSING______________________ 46
14.3
FREE SEGMENT ALLOCATION ______________ 47
14.4
LCD REGISTERS_______________________ 47
15.
PERIPHERAL MEMORY MAP ____________ 49
16.
OPTION REGISTER MEMORY MAP _______ 53
17.
ACTIVE SUPPLY CURRENT TEST ________ 54
18.
MASK OPTIONS _______________________ 55
18.1
INPUT / OUTPUT PORTS __________________ 55
18.1.1
Port A Metal Options ______________ 55
18.1.2
Port A Metal Options ______________ 55
18.1.3
Port B Metal Options ______________ 56
18.1.4
Port SP Metal Options _____________ 57
18.1.5
Voltage Regulator Option ___________ 58
18.1.6
Debouncer Frequency Option _______ 58
18.1.7
Frequency Selection Option _________ 58
18.1.8
LCD Frame Frequency Option _______ 58
18.1.9
User defined LCD Segment Allocation 59
19.
TEMP. AND VOLTAGE BEHAVIORS _______ 60
19.1
IDD CURRENT (TYPICAL) _________________ 60
19.2
IDD CURRENT @ 128KHZ _______________ 60
19.3
PULL-DOWN RESISTANCE (TYPICAL) _________ 61
19.4
PULL-UP RESISTANCE (TYPICAL) ___________ 62
19.5
OUTPUT CURRENTS (TYPICAL) _____________ 62
20.
ELECTRICAL SPECIFICATION ___________ 63
20.1
ABSOLUTE MAXIMUM RATINGS _____________ 63
20.2
HANDLING PROCEDURES _________________ 63
20.3
STANDARD OPERATING CONDITIONS_________ 63
20.4
DC CHARACTERISTICS - POWER SUPPLY _____ 63
20.5
SUPPLY VOLTAGE LEVEL DETECTOR_________ 64
20.6
OSCILLATOR __________________________ 64
20.7
DC CHARACTERISTICS - I/O PINS ___________ 65
20.8
LCD SEG[20:1] OUTPUTS _______________ 66
20.9
LCD COM[4:1] OUTPUTS_________________ 66
20.10
DC OUTPUT COMPONENT ______________ 66
20.11
LCD VOLTAGE MULTIPLIER _____________ 66
21.
DIE, PAD LOCATION AND SIZE___________ 67
22.
PACKAGE & ORDERING INFORMATION ___ 68
22.1
ORDERING INFORMATION _________________ 69
22.2
PACKAGE MARKING _____________________ 69
22.3
CUSTOMER MARKING ___________________ 69


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