ds90420-5-ds07-13711-4e.pdf

FUJITSU SEMICONDUCTOR
DATA SHEET
DS07-13711-4E
16-Bit Original Microcontroller
CMOS
F2MC-16LX MB90420G/425G Series
MB90423GA/423GC/F423GA/F423GC/427GA/427GC/428GA/428GC/
MB90F428GA/F428GC/V420G
■ DESCRIPTIONS
The FUJITSU MB90420G/425G Series is a 16-bit general purpose high-capacity microcontroller designed for
vehicle meter control applications etc.
The instruction set retains the same AT architecture as the FUJITSU original F2MC-8L and F2MC-16L series, with
further refinements including high-level language instructions, expanded addressing mode, enhanced (signed)
multipler-divider computation and bit processing.
In addition, a 32-bit accumulator is built in to enable long word processing.
■ FEATURES
• 16-bit input capture (4 channels)
Detects rising, falling, or both edges.
16-bit capture register × 4
Pin input edge detection latches the 16-bit free-run timer counter value, and generates an interrupt request.
• 16-bit reload timer (2 channels)
16-bit reload timer operation (select toggle output or one-shot output)
Event count function selection provided
(Continued)
■ PACKAGES
Plastic QFP, 100-pin
Plastic LQFP, 100-pin
(FPT-100P-M06)
(FPT-100P-M05)
MB90420G/425G Series
• Watch timer (main clock)
Operates directly from oscillator clock.
Compensates for oscillator deviation
Read/write enabled second/minute/hour register
Signal interrupt
• 16-bit PPG (3 channels)
Output pins (3) , external trigger input pin (1)
Output clock frequencies : fCP, fCP/22, fCP/24, fCP/26
• Delay interrupt
Generates interrupt for task switching.
Interruptions to CPU can be generated/deleted by software setting.
• External interrupts (8 channels)
8-channel independent operation
Interrupt source setting available : “L” to “H” edge/ “H” to “L” edge/ “L” level/ “H” level.
• A/D converter
10-bit or 8-bit resolution × 8 channels (input multiplexed)
Conversion time : 6.13 µs or less (at fCP = 16 MHz)
External trigger startup available (P50/INT0/ADTG)
Internal timer startup available (16-bit reload timer 1)
• UART (2 channels)
Full duplex double buffer type
Supports asynchronous/synchronous transfer (with start/stop bits)
Internal timer can be selected as clock (16-bit reload timer 0)
Asynchronous : 4808 bps, 5208 bps, 9615 bps, 10417 bps, 19230 bps, 38460 bps, 62500 bps, 500000 bps
Synchronous : 500 Kbps, 1Mbps, 2Mbps (at fCP = 16 MHz)
• CAN interface *1
Conforms to CAN specifications version 2.0 Part A and B.
Automatic resend in case of error.
Automatic transfer in response to remote frame.
16 prioritized message buffers for data and messages for data and ID
Multiple message support
Receiving filter has flexible configuration : All bit compare/all bit mask/two partial bit masks
Supports up to 1 Mbps
CAN WAKEUP function (connects RX internally to INT0)
• LCD controller/driver (1 channel)
Segment driver and command driver with direct LCD panel (display) drive capability
• Low voltage/Program Looping detect reset *2
Automatic reset when low voltage is detected
Program Looping detection function
• Stepping motor controller (4 channels)
High current output for all channels × 4
Synchronized 8/10-bit PWM for all channels × 2
• Sound generator
8-bit PWM signal mixed with tone frequency from 8-bit reload counter.
PWM frequencies : 62.5 kHz, 31.2 kHz, 15.6 kHz, 7.8 kHz (at fCP = 16MHz)
Tone frequencies : 1/2 PWM frequency, divided by (reload frequency +1)
(Continued)
2
MB90420G/425G Series
(Continued)
• Input/output ports
Push-pull output and Schmitt trigger input
Programmable in bit units for input/output or peripheral signals.
• Flash memory
Supports automatic programming, Embeded AlgorithmTM, write/erase/erase pause/erase resume instructions
Flag indicates algorithm completion
Minato Electronics flash writer
Boot block configuration
Erasable by blocks
Block protection by external programming voltage
*1 : MB90420G series has 2 channels built-in, MB90425G series has 1 channel built-in
*2 : Built-in to MB90420GA/425GA series only. Not built-in to MB90420GC/425GC series.
Embeded Algorithm is a registered trademark of Advanced Micro Devices Inc.
3
MB90420G/425G Series
■ PRODUCT LINEUP
• MB90420G Series
Part
number
MB90F423GA
MB90F423GC
MB90423GA
MB90423GC
MB90V420G
Parameter
Flash ROM model
Configuration
Evaluation model
F MC-16LX CPU
CPU
1 system
Clock
System clock
Mask ROM model
2
2 systems
1 system
2 systems
2 systems
On-chip PLL clock multiplier type ( × 1, × 2, × 3, × 4, 1/2 when PLL stopped)
Minimum instruction execution time 62.5 ns (with 4 MHz oscillator × 4)
ROM
Flash ROM 128 KB
Mask ROM 128 KB
External
RAM
6 KB
6 KB
6 KB
2 channels
CAN interface
Low voltage/
CPU operation
detection reset
Yes
No
Packages
Yes
No
No
QFP100, LQFP100
PGA-256

No
Emulator
dedicated
power supply*
* : When used with emulation pod MB2145-507, use DIP switch S2 setting. For details see the MB2145-50
Hardware Manual (2.7 “Emulator Dedicated Power Supply Pin”) .
• MB90425G Series
Part number
MB90F428GA MB90F428GC MB90427GA MB90427GC MB90428GA MB90428GC
Parameter
Configuration
Flash ROM model
CPU
Clock
System clock
Mask ROM model
2
F MC-16LX CPU
1 system
2 systems
1 system
2 systems
2 systems
On-chip PLL clock multiplier type ( × 1, × 2, × 3, × 4, 1/2 when PLL stopped)
Minimum instruction execution time 62.5 ns (with 4 MHz oscillator × 4)
ROM
Flash ROM 128 KB
Mask ROM 64 KB
Mask ROM 128 KB
RAM
6 KB
4 KB
6 KB
CAN interface
Low voltage/CPU
operation
detection reset
Packages
Emulator
dedicated
power supply
1 channel
Yes
No
Yes
No
QFP100, LQFP100

Note : MB90V420G can be used as evaluation model for MB90420G/425G series.
4
1 system
Yes
No
MB90420G/425G Series
■ PIN ASSIGNMENTS
• QFP 100
(TOP VIEW)
P57/SGA 76
X1A 77
X0A 78
VSS 79
X0 80
X1 81
VCC 82
P00/SIN0/INT4 83
P01/SOT0/INT5 84
P02/SCK0/INT6 85
P03/SIN1/INT7 86
P04/SOT1 87
P05/SCK1/TRG 88
P06/PPG0/TOT1 89
P07/PPG1/TIN1 90
P10/PPG2 91
P11/TOT0/WOT 92
P12/TIN0/IN3 93
P13/IN2 94
P14/IN1 95
P15/IN0 96
COM0 97
COM1 98
COM2 99
COM3 100
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
VSS
SEG8
SEG9
SEG10
SEG11
P36/SEG12
P37/SEG13
P40/SEG14
P41/SEG15
P42/SEG16
P43/SEG17
P44/SEG18
VCC
P45/SEG19
P46/SEG20
P47/SEG21
C
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
RST
P56/SGO/FRCK
P55/RX0
P54/TX0
DVSS
P87/PWM2M3
P86/PWM2P3
P85/PWM1M3
P84/PWM1P3
DVCC
P83/PWM2M2
P82/PWM2P2
P81/PWM1M2
P80/PWM1P2
DVSS
P77/PWM2M1
P76/PWM2P1
P75/PWM1M1
P74/PWM1P1
DVCC
P73/PWM2M0
P72/PWM2P0
P71/PWM1M0
P70/PWM1P0
DVSS
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
P53/INT3
MD2
MD1
MD0
P52/INT2 (/TX1)
P51/INT1 (/RX1)
P67/AN7
P66/AN6
P65/AN5
P64/AN4
VSS
P63/AN3
P62/AN2
P61/AN1
P60/AN0
AVSS
P50/INT0/ADTG
AVRH
AVCC
V3
V2
V1
V0
P91/SEG23
P90/SEG22
(FPT-100P-M06)
5
MB90420G/425G Series
• LQFP 100
(TOP VIEW)
P57/SGA 76
X1A 77
X0A 78
VSS 79
X0 80
X1 81
VCC 82
P00/SIN0/INT4 83
P01/SOT0/INT5 84
P02/SCK0/INT6 85
P03/SIN1/INT7 86
P04/SOT1 87
P05/SCK1/TRG 88
P06/PPG0/TOT1 89
P07/PPG1/TIN1 90
P10/PPG2 91
P11/TOT0/WOT 92
P12/TIN0/IN3 93
P13/IN2 94
P14/IN1 95
P15/IN0 96
COM0 97
COM1 98
COM2 99
COM3 100
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
VSS
SEG8
SEG9
SEG10
SEG11
P36/SEG12
P37/SEG13
P40/SEG14
P41/SEG15
P42/SEG16
P43/SEG17
P44/SEG18
VCC
P45/SEG19
P46/SEG20
P47/SEG21
C
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
P53/INT3
MD2
MD1
MD0
P52/INT2 (/TX1)
P51/INT1 (/RX1)
P67/AN7
P66/AN6
P65/AN5
P64/AN4
VSS
P63/AN3
P62/AN2
P61/AN1
P60/AN0
AVSS
P50/INT0/ADTG
AVRH
AVCC
V3
V2
V1
V0
P91/SEG23
P90/SEG22
(FPT-100P-M05)
6
RST
P56/SGO/FRCK
P55/RX0
P54/TX0
DVSS
P87/PWM2M3
P86/PWM2P3
P85/PWM1M3
P84/PWM1P3
DVCC
P83/PWM2M2
P82/PWM2P2
P81/PWM1M2
P80/PWM1P2
DVSS
P77/PWM2M1
P76/PWM2P1
P75/PWM1M1
P74/PWM1P1
DVCC
P73/PWM2M0
P72/PWM2P0
P71/PWM1M0
P70/PWM1P0
DVSS
MB90420G/425G Series
■ PIN DESCRIPTIONS
Pin no.
Symbol
LQFP
QFP
80
82
X0
81
83
X1
78
80
X0A
Circuit
type
A
A
77
79
X1A
75
77
RST
B
P00
83
84
85
86
85
86
87
88
SIN0
89
G
89
90
91
93
Reset input pin.
UART ch.0 serial data input pin.
General purpose input/output port.
SOT0
G
UART ch.0 serial data output pin.
INT5
INT5 external interrupt input pin.
P02
General purpose input/output port.
SCK0
G
UART ch.0 serial clock input/output pin.
INT6
INT6 external interrupt input pin.
P03
General purpose input/output port.
SIN1
G
P04
SOT1
SCK1
UART ch.1 serial data input pin.
INT7 external interrupt input pin.
G
General purpose input/output port.
UART ch.1 serial data output pin.
General purpose input/output port.
G
UART ch.1 serial clock input/output pin.
TRG
16-bit PPG ch.0-2 external trigger input pin.
P06
General purpose input/output port.
PPG0
G
PPG1
P10
PPG2
16-bit PPG ch.0 output pin.
16-bit reload timer ch.1 TOT output pin.
General purpose input/output port.
G
TIN1
91
Low speed oscillator output pin. If no oscillator is connected, leave
open.
P01
P07
92
Low speed oscillator input pin. If no oscillator is connected, apply
pull-down processing.
INT4 external interrupt input pin.
TOT1
90
High speed oscillator output pin.
INT4
P05
88
High speed oscillator input pin.
General purpose input/output port.
INT7
87
Description
16-bit PPG ch.1 output pin.
16-bit reload timer ch.1 TIN output pin.
G
General purpose input/output port.
16-bit PPG ch.2 output pin.
(Continued)
7
MB90420G/425G Series
Pin no.
LQFP
QFP
Symbol
Circuit
type
P11
92
93
94
95
Description
General purpose input/output port.
TOT0
G
16-bit reload timer ch.0 TOT output pin.
WOT
Real-time watch timer WOT output pin.
P12
General purpose input/output port.
TIN0
G
IN3
16-bit reload timer ch.0 TIN output pin.
Input capture ch.3 trigger input pin.
P13 to P15
96 to 98
97 to 100
99 to 100,
1 to 2
COM0 to
COM3
I
LCD controller/driver common output pins.
1 to 8,
10 to 13
3 to 10,
12 to 15
SEG0 to
SEG11
I
LCD controller/driver segment output pins.
IN2 to IN0
G
General purpose input/output ports.
94 to 96
P36 to P37
14 to 15
16 to 17
16 to 20,
22 to 24
18 to 22,
24 to 26
SEG12 to
SEG13
General purpose output ports.
E
P40 to P47
SEG14 to
SEG21
28 to 29
SEG22 to
SEG23
E
36
E
38 to 41,
43 to 46
INT0
G
P60 to P67
AN0 to
AN7
47
General purpose input output ports.
F
INT1
G
(RX1 * )
General purpose input output port.
INT2
G
1
(TX1 * )
50
52
P53
INT3
INT1 external interrupt input pin.
CAN interface 1 RX intput pin.
P52
48
A/D converter input pins.
General purpose input output port.
1
46
INT0 external interrupt input pin.
A/D converter external trigger input pin.
P51
45
LCD controller/driver segment output pins.
General purpose input output ports.
ADTG
36 to 39,
41 to 44
LCD controller/driver segment output pins.
General purpose input output ports.
P50
34
LCD controller/driver segment output pins.
General purpose input output ports.
P90 to P91
26 to 27
Input capture ch.0-2 trigger input pins.
INT2 external interrupt input pin.
CAN interface 1 TX output pin.
G
General purpose input output port.
INT3 external interrupt input pin.
(Continued)
8
MB90420G/425G Series
Pin no.
LQFP
QFP
Symbol
Circuit
type
P70 to P73
52 to 55
54 to 57
PWM1P0
PWM1M0
PWM2P0
PWM2M0
General purpose input output ports.
H
P74 to P77
57 to 60
59 to 62
PWM1P1
PWM1M1
PWM2P1
PWM2M1
64 to 67
PWM1P2
PWM1M2
PWM2P2
PWM2M2
H
69 to 72
72
74
73
75
PWM1P3
PWM1M3
PWM2P3
PWM2M3
P54
TX0
P55
RX0
H
76
SGO
H
G
G
Stepping motor controller ch.3 output pins.
General purpose input output port.
CAN interface 0 TX output pin.
General purpose output port.
CAN interface 0 RX input pin.
General purpose input output port.
G
FRCK
P57
Stepping motor controller ch.2 output pins.
General purpose input output ports.
P56
74
Stepping motor controller ch.1 output pins.
General purpose input output ports.
P84 to P87
67 to 70
Stepping motor controller ch.0 output pins.
General purpose input output ports.
P80 to P83
62 to 65
Description
Sound generator SG0 output pin.
Free-run timer clock input pin.
78
28 to 31
30 to 33
V0 to V3

LCD controller /driver reference power supply pins.
56, 66
58, 68
DVCC

High current output buffer with dedicated power supply input pins
(pin numbers 54-57, 59-62, 64-67, 69-72) .
DVSS

High current output buffer with dedicated power supply GND pins
(pin numbers 54-57, 59-62, 64-67, 69-72) .
51, 61, 71 53, 63, 73
SGA
G
General purpose input output port.
76
Sound generator SGA output pin.
32
34
AVCC

A/D converter dedicated power supply input pin.
35
37
AVSS

A/D converter dedicated GND supply pin.
33
35
AVRH

A/D converter Vref + input pin. Vref − AVss.
(Continued)
9
MB90420G/425G Series
(Continued)
Pin no.
Symbol
Circuit
type
49
50
MD0
MD1
C
49
51
MD2
25
27
C

External capacitor pin. Connect an 0.1 µF capacitor between this
pin and VSS.
21, 82
23, 84
VCC

Power supply input pins.
VSS

GND power supply pins.
LQFP
QFP
47
48
9, 40, 79 11, 42, 81
Description
Test mode input pins. Connect to VCC.
C/D *2 Text mode input pin. Connect to VSS.
*1 : MB90420G series only.
*2 : Type C in the flash ROM models, type D in the mask ROM models.
10
MB90420G/425G Series
■ I/O CIRCUIT TYPE
Type
Circuit
Remarks
• Oscillation feedback resistance :
approx. 1 MΩ (X0, X1 : MAIN)
• Oscillation feedback resistance :
approx. 10 MΩ (X0A, X1A : SUB)
X1/X1A
A
X0/X0A
Standby control signal
• Pull-up resistance attached :
approx. 50 kΩ, hysteresis input
B
Hysteresis input
• Hysteresis input
C
Hysteresis input
• Pull-down resistance attached :
approx. 50 kΩ, hysteresis input
Hyteresis input
D
• CMOS output
• LCDC output
• Hysteresis input
E
LCDC output
Hysteresis input
(Continued)
11
MB90420G/425G Series
(Continued)
Type
Circuit
Remarks
• CMOS output
• Hysteresis input
• Analog input
F
Analog input
Hysteresis input
• CMOS output
• Hysteresis input
G
Hysteresis input
• CMOS high current output
• Hysteresis input
High current
H
Hysteresis input
• LCDC output
I
12
LCDC output
MB90420G/425G Series
■ HANDLING DEVICES
Precautions for Handling Semiconductor Devices
• Strictly observe maximum rated voltages (prevent latchup)
When CMOS integrated circuit devices are subjected to applied voltages higher than VCC at input and output
pins other than medium- and high-withstand voltage pins, or to voltages lower than VSS, or when voltages in
excess of rated levels are applied between VCC and VSS, a phenomenon known as latchup can occur. In a latchup
condition, supply current can increase dramatically and may destroy semiconductor elements. In using semiconductor devices, always take sufficient care to avoid exceeding maximum ratings.
Also care must be taken when power to analog systems is switched on or off, to ensure that the analog power
supply (AVCC, AVRH) , analog input and dedicated power supply for the high current output buffer pins (DVCC)
do not exceed the digital power supply (VCC) .
Once the digital power supply (VCC) is switched on, the analog power (AVCC,AVRH) and dedicated power supply
for the high current output buffer pins (DVCC) may be turned on in any sequence.
• Stable supply voltage
Even within the warranted operating range of VCC supply voltage, sudden fluctuations in supply voltage can
cause abnormal operation. The recommended stability for ripple fluctuations (P-P values) at commercial frequencies (50 Hz to 60 Hz) should be within 10% of the standard VCC value, and voltage fluctuations that occur
during switching of power supplies etc. should be limited to transient fluctuation rates of 0.1 V/ms or less.
• Power-on procedures
In order to prevent abnormal operation of the internal built-in step-down circuits, voltage rise time during poweron should be attained within 50 µs (0.2 V to 2.7 V) .
• Treatment of unused pins
If unused input pins are left open, they may cause abnormal operation or latchup which may lead to permanent
damage to the semiconductor. Any such pins should be pulled up or pulled down through resistance of at least
2 kΩ.
Any unused input/output pins should be left open in output status, or if found set to input status, they should be
treated in the same way as input pins.
Any unused output pins should be left open.
• Treatment of A/D converter power supply pins
Even if the A/D converter is not used, pins should be connected so that AVCC = VCC, and AVSS = AVRH = VSS.
• Use of external clock signals
Even when an external clock is used, a stabilization period is required following a power-on reset or release
from sub clock mode or stop mode. Also, when an external clock is used it should drive only the X0 pin and the
X1 pin should be left open, as shown in Figure 3.
X0
OPEN
X1
MB90420G/425G Series
Sample external clock connection
13
MB90420G/425G Series
• Power supply pins
Devices are designed to prevent problems such as latchup when multiple VCC and VSS supply pins are used, by
providing internal connections between pins having the same potential. However, in order to reduce unwanted
radiation, and to prevent abnormal operation of strobe signals due to rise in ground level, and to maintain total
output current ratings, all such pins should always be connected externally to power supplies and ground.
As shown in figure below, all VCC power supply pins must have the same potential. All VSS power supply pins
should be handled in the same way. If there are multiple VCC or VSS systems, the device will not operate properly
even within the warranted operating range.
VCC
VSS
VCC
VSS
VSS
VCC
VCC
VSS
VSS
VCC
Power supply input pins (VCC/VSS)
In addition, care must be given to connecting the VCC and VSS pins of this device to a current source with as little
impedance as possible. It is recommended that a bypass capacitor of 1.0 µF be connected between VCC and
VSS as close to the pins as possible.
• Proper sequence of A/D converter power supply analog input
A/D converter power (AVCC, AVRH) and analog input (AN0-AN7) must be applied after the digital power supply
(VCC) is switched on. When power is shut off, the A/D converter power supply and analog input must be cut off
before the digital power supply is switched on (VCC) . In both power-on and shut-off, care should be taken that
AVRH does not exceed AVCC. Even when pins which double as analog input pins are used as input ports, be
sure that the input voltage does not exceed AVCC. (There is no problem if analog power supplies and digital
power supplies are turned off and on at the same time.)
• Handling the power supply for high-current output buffer pins (DVCC, DVSS)
Always apply power to high-current output buffer pins (DVCC, DVSS) after the digital power supply (VCC) is turned
on. Also when switching power off, always shut off the power supply to the high-current output buffer pins (DVCC,
DVSS) before switching off the digital power supply (VCC) . (There will be no problem if high-current output buffer
pins and digital power supplies are turned off and on at the same time.)
Even when high-current output buffer pins are used as general purpose ports, the power for high current output
buffer pins (DVCC, DVSS) should be applied to these pins.
• Pull-up/pull-down resistance
The MB90420G/425G series does not support internal pull-up/pull-down resistance. If necessary, use external
components.
14
MB90420G/425G Series
• Precautions for when not using a sub clock signal.
If the X0A and X1A pins are not connected to an oscillator, apply pull-down treatment to the X0A pin and leave
the X1A pin open.
• Notes on during operation of PLL clock mode
If the PLL clock mode is selected, the microcontroller attempt to be working with the self-oscillating circuit even
when there is no external oscillator or external clock input is stopped. Performance of this operation, however,
cannot be guaranteed.
15
MB90420G/425G Series
■ BLOCK DIAGRAM
P57/SGA
P56/SGO/FRCK
P55/RX0
P54/TX0
P53/INT3
P52/INT2 (/TX1)
P51/INT1 (/RX1)
P50/INT0/ADTG
P00/SIN0/INT4
P01/SOT0/INT5
P02/SCK0/INT6
P03/SIN1/INT7
P04/SOT1
P05/SCK1/TRG
P06/PPG0/TOT1
P07/PPG1/TIN1
Clock control
circuit
CPU
F2MC-16LX core
RAM
Interrupt
controller
ROM
Low voltage/
CPU operation
detection reset
Sound generator
CAN controller
Port 5
External interrupt
(8 ch)
Port 8
Stepping
motor
Controller
0/1/2/3
UART0/1
Prescaler
0/1
Port 0
PPG0/1/2
P10/PPG2
P11/TOT0/WOT
P12/TIN0/IN3
P13/IN2
P14/IN1
P15/IN0
F2MC-16LX BUS
X0, X1
X0A, X1A
RST
Port 7
A/D converter
(8 ch)
P67 to P60/
AN7 to AN0
AVCC/AVSS
AVRH
Port 9
P91, P90/
SEG23, SEG22
Port 4
P47 to P40/
SEG21 to SEG14
Port 3
P37, P36/
SEG13 to SEG12
Real-time
Watch timer
ICU0/1/2/3
Free-run timer
P77/PWM2M1
P76/PWM2P1
P75/PWM1M1
P74/PWM1P1
P73/PWM2M0
P72/PWM2P0
P71/PWM1M0
P70/PWM1P0
Port 6
Port 1
Reload timer
0/1
P87/PWM2M3
P86/PWM2P3
P85/PWM1M3
P84/PWM1P3
P83/PWM2M2
P82/PWM2P2
P81/PWM1M2
P80/PWM1P2
LCD controller/
driver
SEG11 to SEG0
COM3 to COM0
V3 to V0
Evaluation device (MB90V420G)
No built-in ROM
Built-in RAM is 6 KB.
Note: MB90420G series is equipped with 2-channel CAN interface and MB90425G series is equipped with 1-channel
CAN interface. MB90F423GA, MB90423GA, MB90F428GA, MB90427GA and MB90428GA have low voltage/CPU operation detection reset. MB90F423GC, MB90423GC, MB90F428GC, MB90427GC, MB90428GC
and MB90V420G do not have low voltage/CPU operation detection reset.
See “■ Product Lineup” for detail.
16
MB90420G/425G Series
■ MEMORY MAP
Single chip mode
(with ROM mirror function)
000000H
Peripheral area
0000C0H
000100H
Register
RAM area
Address #2
003900H
Peripheral area
004000H
ROM area
(FF bank image)
010000H
Address #1
ROM area
FFFFFFH
: Internal access memory
: Access prohibited
Parts No.
Address #1
Address #2
MB90423GA/GC
FE0000H
001900H
MB90427GA/GC
FF0000H
001100H
MB90428GA/GC
FE0000H
001900H
MB90F423GA/GC
FE0000H
001900H
MB90F428GA/GC
FE0000H
001900H
MB90V420G
FE0000H
001900H
Note : To select models without the ROM mirror function, see the “ROM Mirror Function Selection Module.” The
image of the ROM data in the FF bank appears at the top of the 00 bank, in order to enable efficient use of
small C compiler models. The lower 16-bit address for the FF bank will be assigned to the same address,
so that tables in ROM can be referenced without declaring a “far” indication with the pointer. For example
when accessing the address 00C000H, the actual access is to address FFC000H in ROM. Here the FF bank
ROM area exceeds 48 KB, so that it is not possible to see the entire area in the 00 bank image. Therefore
because the ROM data from FF4000H to FFFFFFH will appear in the image from 004000H to 00FFFFH, it is
recommended that the ROM data table be stored in the area from FF4000H to FFFFFFH.
17
MB90420G/425G Series
■ I/O MAP
• Other than CAN Interface
Address
Register name
Symbol
Read/write Peripheral function
Initial value
00H
Port 0 data register
PDR0
R/W
Port 0
XXXXXXXX
01H
Port 1 data register
PDR1
R/W
Port 1
- - XX XX XX
(Disabled)
02H
03H
Port 3 data register
PDR3
R/W
Port 3
XX - - - - - -
04H
Port 4 data register
PDR4
R/W
Port 4
XXXXXXXX
05H
Port 5 data register
PDR5
R/W
Port 5
XXXXXXXX
06H
Port 6 data register
PDR6
R/W
Port 6
XXXXXXXX
07H
Port 7 data register
PDR7
R/W
Port 7
XXXXXXXX
08H
Port 8 data register
PDR8
R/W
Port 8
XXXXXXXX
09H
Port 9 data register
PDR9
R/W
Port 9
- - - - - -XX
0AH to
0FH
(Disabled)
10H
Port 0 direction register
DDR0
R/W
Port 0
00000000
11H
Port 1 direction register
DDR1
R/W
Port 1
--000000
12H
(Disabled)
13H
Port 3 direction register
DDR3
R/W
Port 3
00 - - - - - -
14H
Port 4 direction register
DDR4
R/W
Port 4
00000000
15H
Port 5 direction register
DDR5
R/W
Port 5
00000000
16H
Port 6 direction register
DDR6
R/W
Port 6
00000000
17H
Port 7 direction register
DDR7
R/W
Port 7
00000000
18H
Port 8 direction register
DDR8
R/W
Port 8
00000000
19H
Port 9 direction register
DDR9
R/W
Port 9
- - - - - - 00
1AH
Analog input enable
ADER
R/W
Port 6, A/D
11111111
1BH to
1FH
(Disabled)
20H
A/D control status register lower
ADCSL
R/W
21H
A/D control status register higher
ADCSH
R/W
22H
A/D data register lower
ADCRL
R
23H
A/D data register higher
ADCRH
R/W
0 0 1 0 1 XXX
Compare clear register
CPCLR
R/W
XXXXXXXX
R/W
XXXXXXXX
24H
25H
26H
R/W
00000000
A/D converter
16-bit free-run timer
00000000
XXXXXXXX
00000000
Timer data register
TCDT
28H
Timer control status register lower
TCCSL
R/W
00000000
29H
Timer control status register higher
TCCSH
R/W
0- - 00000
27H
R/W
00000000
(Continued)
18
MB90420G/425G Series
Address
Register name
Symbol
Read/write Peripheral function
2AH
PPG0 control status register lower
PCNTL0
R/W
2BH
PPG0 control status register higher
PCNTH0
R/W
2CH
PPG1 control status register lower
PCNTL1
R/W
2DH
PPG1 control status register higher
PCNTH1
R/W
2EH
PPG2 control status register lower
PCNTL2
R/W
2FH
PPG2 control status register higher
PCNTH2
R/W
30H
External interrupt enable
ENIR
R/W
31H
External interrupt request
EIRR
R/W
32H
External interrupt level lower
ELVRL
R/W
33H
External interrupt level higher
ELVRH
R/W
00000000
34H
Serial mode register 0
SMR0
R/W
00000-00
35H
Serial control register 0
SCR0
R/W
00000100
36H
Input data register 0/
Output data register 0
SIDR0/
SODR0
R/W
37H
Serial status register 0
SSR0
R/W
00001000
38H
Serial mode register 1
SMR1
R/W
00000−00
39H
Serial control register 1
SCR1
R/W
00000100
3AH
Input data register 1/
Output data register 1
SIDR1/
SODR1
R/W
3BH
Serial status register 1
SSR1
R/W
16-bit PPG0
16-bit PPG1
16-bit PPG2
Initial value
00000000
000000000000000
000000000000000
000000000000000
External interrupt
UART 0
UART1
00000000
00000000
XXXXXXXX
XXXXXXXX
00001000
(Disabled)
3CH
3DH
Clock division control register 0
CDCR0
R/W
Prescaler
0---0000
3EH
CAN wake-up control register
CWUCR
R/W
CAN
-------0
3FH
Clock division control register 1
CDCR1
R/W
Prescaler
0---0000
40H to 4FH
Area reserved for CAN interface 0
50H
Timer control status register 0 lower TMCSR0L
R/W
51H
Timer control status register 0 highTMCSR0H
er
R/W
53H
Timer register 0/
Reload register 0
R/W
54H
Timer control status register 1 lower TMCSR1L
R/W
55H
Timer control status register 1 highTMCSR1H
er
R/W
57H
Timer register 1/
Reload register 1
TMR1/
TMRLR1
R/W
58H
Watch timer control register lower
WTCRL
R/W
59H
Watch timer control register higher
WTCRH
R/W
52H
56H
TMR0/
TMRLR0
00000000
16-bit reload timer 0
- - -00000
XXXXXXXX
XXXXXXXX
00000000
16-bit reload timer 1
- - - 00000
XXXXXXXX
XXXXXXXX
Real-time
watch timer
000- - 000
00000000
(Continued)
19
MB90420G/425G Series
Address
Register name
Symbol Read/write
Peripheral function
Initial value
5AH
Sound control register lower
SGCRL
R/W
00000000
5BH
Sound control register higher
SGCRH
R/W
0 - - - - - 00
5CH
Frequency data register
SGFR
R/W
5DH
Amplitude data register
SGAR
R/W
5EH
Decrement grade register
SGDR
R/W
XXXXXXXX
5FH
Tone count register
SGTR
R/W
XXXXXXXX
Input capture register 0
IPCP0
R
60H
61H
62H
63H
64H
65H
66H
67H
68H
Input capture register 1
IPCP1
R
Input capture register 2
IPCP2
R
IPCP3
R
Input capture control status 0/1
ICS01
R/W
00000000
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
Input capture 2/3
Input capture register 3
XXXXXXXX
XXXXXXXX
Input capture 0/1
69H
6AH
Sound generator
XXXXXXXX
XXXXXXXX
XXXXXXXX
Input capture 0/1
00000000
Input capture 2/3
00000000
LCD controller/
driver
00010000
(Disabled)
Input capture control status 2/3
ICS23
6BH
R/W
(Disabled)
6CH
LCD control register lower
LCRL
R/W
6DH
LCD control register higher
LCRH
R/W
6EH
Low voltage/CPU operation
detection reset control register
LVRC
R/W
Low voltage/CPU operation detection reset
10111000
6FH
ROM mirror
ROMM
W
ROM mirror
XXXXXXX1
70H to 7FH
80H
Area reserved for CAN interface 1
PWM control register 0
PWC0
81H
82H
PWM control register 1
PWC1
87H to
9DH
Stepping motor
controller0
00000--0
R/W
Stepping motor
controller1
00000--0
Stepping motor controller2
00000--0
Stepping motor controller3
00000--0
(Disabled)
PWM control register 2
PWC2
85H
86H
R/W
(Disabled)
83H
84H
00000000
R/W
(Disabled)
PWM control register 3
PWC3
R/W
(Disabled)
(Continued)
20
MB90420G/425G Series
Address
Register name
Symbol
Read/write Peripheral function
Initial value
PACSR
R/W
Address match
detection function
- - - - - 0-0
DIRR
R/W
Delayed interrupt
- - - - - - -0
Power saving mode
LPMCR
R/W
00011000
Clock select
CKSCR
R/W
Power saving
control circuit
11111100
9EH
ROM correction control register
9FH
Delay interrupt/release
A0H
A1H
A2H to
A7H
(Disabled)
A8H
Watchdog control
WDTC
R/W
Watchdog timer
XXXXX 1 1 1
A9H
Time base timer control register
TBTC
R/W
Time base timer
1 - -00100
AAH
Watch timer control register
WTC
R/W
Watch timer
(sub-clock)
1X000000
Flash interface
0 0 0 X 0 XX 0
ABH to
ADH
AEH
(Disabled)
Flash control register
AFH
FMCS
R/W
(Disabled)
B0H
Interrupt control register 00
ICR00
R/W
00000111
B1H
Interrupt control register 01
ICR01
R/W
00000111
B2H
Interrupt control register 02
ICR02
R/W
00000111
B3H
Interrupt control register 03
ICR03
R/W
00000111
B4H
Interrupt control register 04
ICR04
R/W
00000111
B5H
Interrupt control register 05
ICR05
R/W
00000111
B6H
Interrupt control register 06
ICR06
R/W
00000111
B7H
Interrupt control register 07
ICR07
R/W
B8H
Interrupt control register 08
ICR08
R/W
B9H
Interrupt control register 09
ICR09
R/W
00000111
BAH
Interrupt control register 10
ICR10
R/W
00000111
BBH
Interrupt control register 11
ICR11
R/W
00000111
BCH
Interrupt control register 12
ICR12
R/W
00000111
BDH
Interrupt control register 13
ICR13
R/W
00000111
BEH
Interrupt control register 14
ICR14
R/W
00000111
BFH
Interrupt control register 15
ICR15
R/W
00000111
C0H to
FFH
Interrupt controller
00000111
00000111
(Disabled)
(Continued)
21
MB90420G/425G Series
Address
Register name
Symbol
Read/write Peripheral function
Initial value
1FF0H
ROM correction address 0
PADR0
R/W
XXXXXXXX
1FF1H
ROM correction address 1
PADR0
R/W
XXXXXXXX
1FF2H
ROM correction address 2
PADR0
R/W
1FF3H
ROM correction address 3
PADR1
R/W
1FF4H
ROM correction address 4
PADR1
R/W
XXXXXXXX
1FF5H
ROM correction address 5
PADR1
R/W
XXXXXXXX
3900H to
391FH
3920H
3921H
3922H
3923H
3924H
3925H
3929H
392AH
392BH
392CH
392DH
PPG0 down counter register
PDCR0
R
PPG0 cycle setting register
PCSR0
W
PPG0 duty setting register
PDUT0
W
3931H
3932H
3933H
3934H
3935H
3936H to
3959H
XXXXXXXX
11111111
11111111
16-bit PPG 0
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
(Disabled)
PPG1 down counter register
PDCR1
R
PPG1 cycle setting register
PCSR1
W
PPG1 duty setting register
PDUT1
W
392EH to
392FH
3930H
XXXXXXXX
(Disabled)
3926H to
3927H
3928H
Address match
detection function
11111111
11111111
16-bit PPG 1
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
(Disabled)
PPG2 down counter register
PDCR2
R
PPG2 cycle setting register
PCSR2
W
PPG2 duty setting register
PDUT2
W
11111111
11111111
16 bit PPG 2
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
(Disabled)
(Continued)
22
MB90420G/425G Series
Address
Register name
Symbol
Read/write Peripheral function
395AH
395BH
Initial value
XXXXXXXX
Sub second data register
WTBR
R/W
395CH
XXXXXXXX
Real time
watch timer
- - - XXXXX
395DH
Second data register
WTSR
R/W
395EH
Minute data register
WTMR
R/W
- - XXXXXX
395FH
Hour data register
WTHR
R/W
- - - XXXXX
3960H to
LCD display RAM
396BH
VRAM
R/W
396CH to
397FH
3980H
LCD controller/
driver
- - XXXXXX
XXXXXXXX
(Disabled)
XXXXXXXX
PWM1 compare register 0
PWC10
R/W
PWM2 compare register 0
PWC20
R/W
3984H
PWM1 select register 0
PWS10
R/W
- - 000000
3985H
PWM2 select register 0
PWS20
R/W
-0000000
3981H
3982H
3983H
3986H to
3987H
3988H
- - - - - - XX
Stepping motor
controller 0
XXXXXXXX
- - - - - - XX
(Disabled)
XXXXXXXX
PWM1 compare register 1
PWC11
R/W
PWM2 compare register 1
PWC21
R/W
398CH
PWM1 select register 1
PWS11
R/W
--000000
398DH
PWM2 select register 1
PWS21
R/W
-0000000
3989H
398AH
398BH
398EH to
398FH
3990H
- - - - - - XX
Stepping motor
controller 1
XXXXXXXX
- - - - - - XX
(Disabled)
XXXXXXXX
PWM1 compare register 2
PWC12
R/W
PWM2 compare register 2
PWC22
R/W
3994H
PWM1 select register 2
PWS12
R/W
--000000
3995H
PWM2 select register 2
PWS22
R/W
-0000000
3991H
3992H
3993H
3996H to
3997H
- - - - - - XX
Stepping motor
controller 2
XXXXXXXX
- - - - - - XX
(Disabled)
(Continued)
23
MB90420G/425G Series
(Continued)
Address
3998H
Register name
Symbol
Read/write Peripheral function
Initial value
XXXXXXXX
PWM1 compare register 3
PWC13
R/W
PWM2 compare register 3
PWC23
R/W
399CH
PWM1 select register 3
PWS13
R/W
--000000
399DH
PWM2 select register 3
PWS23
R/W
-0000000
3999H
399AH
399BH
- - - - - - XX
Stepping motor
controller 3
399EH to
39FFH
(Disabled)
3A00H to
3AFFH
Area reserved for CAN interface 0
3B00H to
3BFFH
Area reserved for CAN interface 1
3C00H to
3CFFH
Area reserved for CAN interface 0
3D00H to
3DFFH
Area reserved for CAN interface 1
3E00H to
3EFFH
(Disabled)
XXXXXXXX
- - - - - - XX
• Initial value symbols :
“0” initial value 0.
“1” initial value 1.
“X” initial value undetermined
“-” initial value undetermined (none)
• Write/read symbols :
“R/W” read/write enabled
“R” read only
“W” write only
• Addresses in the area 0000H to 00FFH are reserved for the principal functions of the MCU. Read access
attempts to reserved areas will result in an “X” value. Also, write access to reserved areas is prohibited.
24
MB90420G/425G Series
• I/O Map for CAN Interface
Address
CAN0
CAN1
000040H
000070H
000041H
000071H
000042H
000072H
000043H
000073H
000044H
000074H
000045H
000075H
000046H
000076H
000047H
000077H
000048H
000078H
000049H
000079H
00004AH
00007AH
00004BH
00007BH
00004CH
00007CH
00004DH
00007DH
00004EH
00007EH
00004FH
00007FH
003C00H
003D00H
003C01H
003D01H
003C02H
003D02H
003C03H
003D03H
003C04H
003D04H
003C05H
003D05H
003C06H
003D06H
003C07H
003D07H
003C08H
003D08H
003C09H
003D09H
003C0AH 003D0AH
003C0BH 003D0BH
003C0CH 003D0CH
003C0DH 003D0DH
003C0EH 003D0EH
003C0FH 003D0FH
Register name
Symbol
Read/
write
Initial value
Message buffer valid area
BVALR
(R/W)
00000000 00000000
Transmission request register
TREQR
(R/W)
00000000 00000000
Transmission cancel register
TCANR
(W)
00000000 00000000
Transmission completed register
TCR
(R/W)
00000000 00000000
Receiving completed register
RCR
(R/W)
00000000 00000000
Remote request receiving register
RRTRR
(R/W)
00000000 00000000
Receiving overrun register
ROVRR
(R/W)
00000000 00000000
Receiving interrupt enable register
RIER
(R/W)
00000000 00000000
Control status register
CSR
(R/W, R)
00---000
0----0-1
Last event indicator register
LEIR
(R/W)
--------
000-0000
RX/TX error counter
RTEC
(R)
00000000 00000000
Bit timing register
BTR
(R/W)
-1111111 11111111
IDE register
IDER
(R/W)
Transmission RTR register
TRTRR
(R/W)
Remote frame receiving wait register
RFWTR
(R/W)
Transmission interrupt enable register
TIER
(R/W)
XXXXXXXX
XXXXXXXX
00000000 00000000
XXXXXXXX
XXXXXXXX
00000000 00000000
(Continued)
25
MB90420G/425G Series
Address
CAN0
CAN1
003C10H
003D10H
003C11H
003D11H
003C12H
003D12H
003C13H
003D13H
003C14H
003D14H
003C15H
003D15H
003C16H
003D16H
003C17H
003D17H
003C18H
003D18H
003C19H
003D19H
003C1AH 003D1AH
Register name
Acceptance mask select register
Acceptance mask register 0
Acceptance mask register 1
Symbol
AMSR
AMR0
AMR1
Read/
write
003B00H
to
General purpose RAM
003B1FH
003A20H
003B20H
003A21H
003B21H
003A22H
003B22H
003A23H
003B23H
003A24H
003B24H
003A25H
003B25H
003A26H
003B26H
003A27H
003B27H
003A28H
003B28H
003A29H
003B29H
003A2AH 003B2AH
ID register 0
ID register 1
ID register 2

IDR0
IDR1
IDR2
003A2FH
003B2FH
003A30H
003B30H
003A31H
003B31H
003A32H
003B32H
003A33H
003B33H
ID register 3
ID register 4
IDR3
IDR4
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
(R/W)
(R/W)
XXXXXXXX to XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
(R/W)
(R/W)
(R/W)
003A2CH 003B2CH
003A2EH 003B2EH
XXXXXXXX
(R/W)
003A2BH 003B2BH
003A2DH 003B2DH
XXXXXXXX
(R/W)
003C1BH 003D1BH
003A00H
to
003A1FH
Initial value
(R/W)
(R/W)
(Continued)
26
MB90420G/425G Series
Address
CAN0
CAN1
003A34H
003B34H
003A35H
003B35H
003A36H
003B36H
003A37H
003B37H
003A38H
003B38H
003A39H
003B39H
003A3AH 003B3AH
Register name
ID register 5
ID register 6
Symbol
IDR5
IDR6
Read/
write
003A3FH
003B3FH
003A40H
003B40H
003A41H
003B41H
003A42H
003B42H
003A43H
003B43H
003A44H
003B44H
003A45H
003B45H
003A46H
003B46H
003A47H
003B47H
003A48H
003B48H
003A49H
003B49H
003A4AH 003B4AH
ID register 7
ID register 8
ID register 9
ID register 10
IDR7
IDR8
IDR9
IDR10
003A4FH
003B4FH
003A50H
003B50H
003A51H
003B51H
003A52H
003B52H
003A53H
003B53H
ID register 11
ID register 12
IDR11
IDR12
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
(R/W)
(R/W)
(R/W)
003A4CH 003B4CH
003A4EH 003B4EH
XXXXX- - -
(R/W)
003A4BH 003B4BH
003A4DH 003B4DH
XXXXXXXX
(R/W)
003A3CH 003B3CH
003A3EH 003B3EH
XXXXXXXX
(R/W)
003A3BH 003B3BH
003A3DH 003B3DH
Initial value
(R/W)
(R/W)
(Continued)
27
MB90420G/425G Series
Address
CAN0
CAN1
003A54H
003B54H
003A55H
003B55H
003A56H
003B56H
003A57H
003B57H
003A58H
003B58H
003A59H
003B59H
003A5AH 003B5AH
Register name
ID register 13
ID register 14
Symbol
IDR13
IDR14
Read/
write
003A5FH
003B5FH
003A60H
003B60H
003A61H
003B61H
003A62H
003B62H
003A63H
003B63H
003A64H
003B64H
003A65H
003B65H
003A66H
003B66H
003A67H
003B67H
003A68H
003B68H
003A69H
003B69H
003A6AH 003B6AH
003A6BH 003B6BH
003A6CH 003B6CH
003A6DH 003B6DH
003A6EH 003B6EH
003A6FH
003B6FH
003A70H
003B70H
003A71H
003B71H
003A72H
003B72H
003A73H
003B73H
003A74H
003B74H
003A75H
003B75H
ID register 15
IDR15
XXXXXXXX
XXXXX- - -
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXX- - -
XXXXXXXX
(R/W)
003A5CH 003B5CH
003A5EH 003B5EH
XXXXXXXX
(R/W)
003A5BH 003B5BH
003A5DH 003B5DH
Initial value
(R/W)
DLC register 0
DLCR0
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 1
DLCR1
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 2
DLCR2
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 3
DLCR3
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 4
DLCR4
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 5
DLCR5
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 6
DLCR6
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 7
DLCR7
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 8
DLCR8
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 9
DLCR9
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 10
DLCR10
(R/W)
- - - -XXXX
- - - -XXXX
(Continued)
28
MB90420G/425G Series
Address
CAN0
CAN1
003A76H
003B76H
003A77H
003B77H
003A78H
003B78H
003A79H
003B79H
003A7AH 003B7AH
003A7BH 003B7BH
003A7CH 003B7CH
003A7DH 003B7DH
003A7EH 003B7EH
Symbol
Read/
write
DLC register 11
DLCR11
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 12
DLCR12
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 13
DLCR13
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 14
DLCR14
(R/W)
- - - -XXXX
- - - -XXXX
DLC register 15
DLCR15
(R/W)
- - - -XXXX
- - - -XXXX
Register name
Initial value
003A7FH
003B7FH
003A80H
to
003A87H
003B80H
to
Data register 0 (8 bytes)
003B87H
DTR0
(R/W)
XXXXXXXX to XXXXXXXX
003A88H
to
003A8FH
003B88H
to
Data register 1 (8 bytes)
003B8FH
DTR1
(R/W)
XXXXXXXX to XXXXXXXX
003A90H
to
003A87H
003B90H
to
Data register 2 (8 bytes)
003B97H
DTR2
(R/W)
XXXXXXXX to XXXXXXXX
003A98H
to
003A9FH
003B98H
to
Data register 3 (8 bytes)
003B9FH
DTR3
(R/W)
XXXXXXXX to XXXXXXXX
003AA0H 003BA0H
to
to
Data register 4 (8 bytes)
003AA7H 003BA7H
DTR4
(R/W)
XXXXXXXX to XXXXXXXX
003AA8H 003BA8H
to
to
Data register 5 (8 bytes)
003AAFH 003BAFH
DTR5
(R/W)
XXXXXXXX to XXXXXXXX
003AB0H 003BB0H
to
to
Data register 6 (8 bytes)
003AB7H 003BB7H
DTR6
(R/W)
XXXXXXXX to XXXXXXXX
003AB8H 003BB8H
to
to
Data register 7 (8 bytes)
003ABFH 003BBFH
DTR7
(R/W)
XXXXXXXX to XXXXXXXX
003AC0H 003BC0H
to
to
Data register 8 (8 bytes)
003AC7H 003BC7H
DTR8
(R/W)
XXXXXXXX to XXXXXXXX
003AC8H 003BC8H
to
to
Data register 9 (8 bytes)
003ACFH 003BCFH
DTR9
(R/W)
XXXXXXXX to XXXXXXXX
(Continued)
29
MB90420G/425G Series
(Continued)
Address
Symbol
Read/
write
Initial value
003AD0H 003BD0H
to
to
Data register 10 (8 bytes)
003AD7H 003BD7H
DTR10
(R/W)
XXXXXXXX to XXXXXXXX
003AD8H 003BD8H
to
to
Data register 11 (8 bytes)
003ADFH 003BDFH
DTR11
(R/W)
XXXXXXXX to XXXXXXXX
003AE0H 003BE0H
to
to
Data register 12 (8 bytes)
003AE7H 003BE7H
DTR12
(R/W)
XXXXXXXX to XXXXXXXX
003AE8H 003BE8H
to
to
Data register 13 (8 bytes)
003AEFH 003BEFH
DTR13
(R/W)
XXXXXXXX to XXXXXXXX
003AF0H
to
003AF7H
003BF0H
to
Data register 14 (8 bytes)
003BF7H
DTR14
(R/W)
XXXXXXXX to XXXXXXXX
003AF8H 003BF8H
to
to
Data register 15 (8 bytes)
003AFFH 003BFFH
DTR15
(R/W)
XXXXXXXX to XXXXXXXX
CAN0
30
CAN1
Register name
MB90420G/425G Series
■ INTERRUPT SOURCES, INTERRUPT VECTORS, AND INTERRUPT CONTROL REGISTERS
Interrupt source
EI2OS
compatible
Interrupt vector
Number
Address
Interrupt control register Priority
ICR
Address
*2
High
Reset
×
#08
08H FFFFDCH


INT9 instruction
×
#09
09H FFFFD8H


Exception processing
×
#10
0AH FFFFD4H


CAN0 RX
×
#11
0BH FFFFD0H
CAN0 TX/NS
×
#12
0CH FFFFCCH
ICR00
0000B0H *1
CAN1 RX
×
#13
0DH FFFFC8H
CAN1 TX/NS
×
#14
0EH FFFFC4H
ICR01
0000B1H *1
Input capture 0
#15
0FH FFFFC0H
DTP/external interrupt - ch 0 detected
#16
10H FFFFBCH
ICR02
0000B2H *1
Reload timer 0
#17
11H
FFFFB8H
DTP/external interrupt - ch 1 detected
#18
12H
FFFFB4H
ICR03
0000B3H *1
Input capture 1
#19
13H
FFFFB0H
DTP/external interrupt - ch 2 detected
#20
14H FFFFACH
ICR04
0000B4H *1
Input capture 2
#21
15H
FFFFA8H
DTP/external interrupt - ch 3 detected
#22
16H
FFFFA4H
ICR05
0000B5H *1
Input capture 3
#23
17H
FFFFA0H
DTP/external interrupt - ch 4/5 detected
#24
18H FFFF9CH
ICR06
0000B6H *1
PPG timer 0
#25
19H
FFFF98H
DTP/external interrupt - ch 6/7 detected
#26
1AH
FFFF94H
ICR07
0000B7H *1
PPG timer 1
#27
1BH
FFFF90H
Reload timer 1
#28
1CH FFFF8CH
ICR08
0000B8H *1
PPG timer 2
#29
1DH FFFF88H
ICR09
0000B9H *1
ICR10
0000BAH *1
ICR11
0000BBH *1
ICR12
0000BCH *1
ICR13
0000BDH *1
ICR14
0000BEH *1
ICR15
0000BFH *1
Real time watch timer
×
#30
1EH
FFFF84H
Free-run timer over flow
×
#31
1FH
FFFF80H
#32
20H FFFF7CH
A/D converter conversion end
Free-run timer clear
×
#33
21H
FFFF78H
Sound generator
×
#34
22H
FFFF74H
Time base timer
×
#35
23H
FFFF70H
Watch timer (sub-clock)
×
#36
24H FFFF6CH
UART 1 RX
#37
25H
FFFF68H
UART 1 TX
#38
26H
FFFF64H
UART 0 RX
#39
27H
FFFF60H
UART 0 TX
#40
28H FFFF5CH
Flash memory status
×
#41
29H
FFFF58H
Delayed interrupt generator module
×
#42
2AH
FFFF54H
Low
31
MB90420G/425G Series
: Compatible, with EI2OS stop function
: Compatible
: Compatible when interrupt sources sharing ICR are not in use
× : Not compatible
*1 : • Peripheral functions sharing the ICR register have the same interrupt level.
• If peripheral functions sharing the ICR register are using expanded intelligent I/O services, one or the other
cannot be used.
• When peripheral functions are sharing the ICR register and one specifies expanded intelligent I/O services,
the interrupt from the other function cannot be used.
*2 : Priority applies when interrupts of the same level are generated.
32
MB90420G/425G Series
■ PERIPHERAL FUNCTIONS
1. I/O Ports
The I/O ports function is to send data from the CPU to be output from I/O pins and load input signals at the I/O
pins into the CPU, according to the port data register (PDR) . Port input/output at I/O pins can be controlled in
bit units by the port direction register (DDR) as required. The following list shows each of the functions as well
as the shared peripheral function for each port.
•
•
•
•
•
•
•
•
•
Port 0 : General purpose I/O port, shared with peripheral functions (external interrupt/UART/PPG)
Port 1 : General purpose I/O port, shared with peripheral functions (PPG/reload timer/clock timer/ICU)
Port 3 : General purpose I/O port, shared with peripheral functions (LCD)
Port 4 : General purpose I/O port, shared with peripheral functions (LCD)
Port 5 : General purpose I/O port, shared with peripheral functions (External interrupt/CAN/SG)
Port 6 : General purpose I/O port, shared with peripheral functions (A/D converter)
Port 7 : General purpose I/O port, shared with peripheral functions (Stepping motor controller)
Port 8 : General purpose I/O port, shared with peripheral functions (Stepping motor controller)
Port 9 : General purpose I/O port, shared with peripheral functions (LCD)
(1) List of Functions
Port
Pin name
Port 0
P00/SIN0/INT4 to
P07/PPG1
Port 1
P10/PPG2 to
P15/IN0
Port 3
P36/SEG12 to
P37/SEG13
Port 4
P40/SEG14 to
P47/SEG21
Port 5
P50/INT0 to
P57/SGA
Port 6
P60/AN0 to
P67/AN7
Port 7
P70/PWM1P0 to
P77/PWM2M1
Port 8
P80/PWM1P2 to
P87/PWM2M3
Port 9
P90/SEG22 to
P91/SEG23
Input
format
Output format
CMOS
(hysteresis)
(Automotive level*)
CMOS
Analog
CMOS
(hysteresis)
(Automotive level*)
CMOS
(hysteresis)
(Automotive level*)
Function
General purpose I/O port
Peripheral function
General purpose I/O port
Peripheral function
General purpose I/O port
Peripheral function
General purpose I/O port
Peripheral function
General purpose I/O port
Peripheral function
General purpose I/O port
Peripheral function
General purpose I/O port
Peripheral function
General purpose I/O port
Peripheral function
General purpose I/O port
Peripheral function
(Continued)
33
MB90420G/425G Series
(Continued)
Port
Port 0
Port 1
Port 3
Port 4
Port 5
Port 6
Port 7
Port 8
Port 9
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
P07
P06
P05
P04
P03
P02
P01
P00
PPG1
PPG0
SCK1
SOT1
SIN1
SCK0
SOT0
SIN0
TIN1
TOT1


INT7
INT6
INT5
INT4


P15
P14
P13
P12
P11
P10


IN0
IN1
IN2
IN3
WOT
PPG2





TIN0
TOT0

P37
P36






SEG13
SEG12






P47
P46
P45
P44
P43
P42
P41
P40
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
P57
P56
P55
P54
P53
P52
P51
P50
SGA
SGO
RX0
TX0
INT3
INT2
INT1
INT0

FRCK



TX1
RX1

P67
P66
P65
P64
P63
P62
P61
P60
AN7
AN6
AN5
AN4
AN3
AN2
AN1
AN0
P77
P76
P75
P74
P73
P72
P71
P70
PWM2M1
PWM2P1
PWM1M1
PWM1P1
PWM2M0
PWM2P0
PWM1M0
PWM1P0
P87
P86
P85
P84
P83
P82
P81
P80
PWM2M3
PWM2P3
PWM1M3
PWM1P3
PWM2M2
PWM2P2
PWM1M2
PWM1P2






P91
P90






SEG23
SEG22
*: Range of input voltage.
For ratings see “3. DC Characteristics” in “■ ELECTRICAL CHARACTERISTICS”.
Note : Port 6 also functions as an analog input pin. When using this port as a general purpose port, always write
“0” to the corresponding analog input enable register (ADER) bit. The ADER bit is initialized to “1” at reset.
34
MB90420G/425G Series
(2) Block Diagrams
Ports 0, 1, 3, 4, 5, 7, 8, 9
Peripheral function output
Peripheral function input
Peripheral function output enabled
Internal data bus
PDR (Port data register)
PDR read
Output latch
PDR write
Pin
DDR (Port direction register)
Direction
latch
DDR write
DDR read
Standby control (SPL = 1)
or LCD output enabled
Port 6
ADER
Internal data bus
PDR (Port data register)
Analog input
RDR read
Output latch
PDR write
Pin
DDR (Port direction register)
Direction
latch
DDR write
DDR read
Standby control (SPL = 1)
35
MB90420G/425G Series
2. Watchdog Timer/Time Base Timer/Watch Timer
The watchdog timer, timer base timer, and watch timer have the following circuit configuration.
• Watchdog timer : Watchdog counter, control register, watchdog reset circuit
• Time base timer : 18-bit timer, interval interrupt control circuit
• Watch timer
: 15-bit timer, interval interrupt control circuit
(1) Watchdog timer function
The watchdog timer is composed of a 2-bit watchdog counter that uses the carry signal from the 18-bit time
base timer or 15-bit watch timer as a clock source, plus a control register and watchdog reset control circuit.
After startup, this function will reset the CPU if not cleared within a given time.
(2) Time base timer function
The time base timer is an 18-bit free-run counter (time base counter) synchronized with the internal count clock
(base oscillator divided by 2) , with an interval timer function providing a selection of four interval times. Other
functions include a timer output for an oscillator stabilization wait time and clock feed to the watchdog timer or
other operating clocks. Note that the time base timer uses the main clock regardless of the setting of the MCS
bit or SCS bit in the CKSCR register.
(3) Watch timer function
The watch timer provides functions including a clock source for the watchdog timer, a sub clock base oscillator
stabilization wait timer, and an interval timer to generate an interrupt at fixed intervals. Note that the watch timer
uses the sub clock regardless of the setting of the MCS bit or SCS bit in the CKSCR register.
36
MB90420G/425G Series
• Block Diagram
Main base oscillator
divided by 2
TBTC
TBC1
Selector
TBC0
TBR
TBIE
AND
Q
211
213
216
218
TBTRES
Clock input
Time base timer
211 213 216 218
S
R
TBOF
Time base
interrupt
WDTC
WT1
Selector
2-bit
counter OF
CLR
WT0
Watchdog reset
generator circuit
CLR
WTE
To WDGRST
internal reset
generator circuit
F2MC-16LX bus
WTC
WDCS
SCE
AND
Q
SGW
Power-on reset,
sub-clock stop
S
R
WTC2
to
WTC0
Selector
WTR
WTIE
WTOF
AND
Q
S
R
28
29
210
211
212
213
214
216
WTRES
210 213 214 216
Watch timer
Clock input
Sub base oscillator divided by 4
Clock interrupt
WDTC
PONR
From power-on generator
WRST
ERST
RST pin
SRST
From RST bit in STBYC
register
37
MB90420G/425G Series
3. Input Capture
This circuit is composed of a 16-bit free-run timer and four 16-bit input capture circuits.
(1) Input capture ( × 4)
The input capture circuits consist of four independent external input pins and corresponding capture registers
and control registers. When the specified edge of the external signal input (at the input pin) is detected, the value
of the 16-bit free-run timer is saved in the capture register, and at the same time an interrupt can also be
generated.
• The valid edge (rising edge, falling edge, both edges) of the external signal can be selected.
• The four input capture circuits can operate independently.
• The interrupt can be generated from the valid edge of the external input signal.
(2) 16-bit free-run timer ( × 1)
The 16-bit free-run timer is composed of a 16-bit up-counter, control register, 16-bit compare register, and
prescaler. The output values from this counter are used as the base time for the input capture circuits.
• The counter clock operation can be selected from 8 options. The eight internal clock settings are φ, φ/2, φ/4,
φ/8, φ/16, φ/32, φ/64, φ/128 where φ represents the machine clock cycle.
• Interrupts can be generated from overflow events, or from compare match events with the compare register.
(Compare match operation requires a mode setting.)
• The counter value can be initialized to “0000H” by a reset, soft clear, or a compare match with the compare
register.
(3) Block diagram
φ
interrupt
#31 (1FH)
IVF
IVFE STOP MODE SCLR CLK2 CLK1 CLK0
Divider
Clock
16-bit free-run timer
F2MC-16LX bus
16-bit compare clear register
Interrupt
#33 (21H)
Compare circuit
MSI3 to 0
ICLR
ICRE
A/D startup
Edge detection
IN0/2
Capture data register 0/2
EG11
EG10
EG01
Edge detection
Capture data register 1/3
ICP0
ICP1
ICE0
EG00
IN1/3
ICE1
Interrupt
#19, #23
Interrupt
#15, #21
38
MB90420G/425G Series
4. 16-bit Reload Timer
The 16-bit reload timer can either count down in synchronization with three types of internal clock signals in
internal clock mode, or count down at the detection of the designated edge of an external signal. The user may
select either function. This timer defines a transition from 0000H to FFFFH as an underflow event. Thus an
underflow occurs when counting from the value [Reload register setting + 1].
A selection of two counter operating modes are available. In reload mode, the counter is reset to the count value
and continues counting after an underflow, and in one-shot mode the count stops after an underflow. The counter
can generate an interrupt when an underflow occurs, and is compatible with the expanded intelligent I/O services
(EI2OS) .
(1) 16-bit Reload timer operating modes
Clock mode
Counter mode
Reload mode
Internal clock mode
Event count mode
(external clock mode)
One-shot mode
Reload mode
One-shot mode
16-bit reload timer operation
Soft trigger operation
External trigger operation
External gate input operation
Soft trigger operation
(2) Internal clock mode
One of three input clocks is selected as the count clock, and can be used in one of the following operations.
• Soft trigger operation
When “1” is written to the TRG bit in the timer control status register (TMCSR0/1) , the count operation
starts.Trigger input at the TRG bit is normally valid with an external trigger input, as well as an external gate
input.
• External trigger operation
Count operation starts when a selected edge (rising, falling, both edges) is input at the TIN0/1 pin.
• External gate input operation
Counting continues as long as the selected signal level (“L” or “H”) is input at the TIN0/1 pin.
(3) Event count mode (External clock mode)
In this mode a down count event occurs when a selected valid edge (rising, falling, both edges) is input at the
TIN0/1 pin. This function can also be used as an interval timer when an external clock with a fixed period is used.
(4) Counter operation
• Reload mode
In down count operation, when an underflow event (transition from “0000H” to “FFFFH”) occurs, the set count
value is reloaded and count operation continues. The function can be used as an interval timer by generating
an interrupt request at each underflow event. Also, a toggle waveform that inverts at each underflow can be
output from the TOT0/1 pin.
Counter clock
Counter clock period
Interval time
Internal clock
21/φ (0.125 µs)
0.125 µs to 8.192 ms
2 /φ (0.5 µs)
0.5 µs to 32.768 ms
2 /φ (2.0 µs)
2.0 µs to 131.1 ms
23/φ or greater (0.5 µs)
0.5 µs or greater
3
5
External clock
φ : Machine clock cycle. Figures in ( ) are values at machine clock frequency 16 MHz.
39
MB90420G/425G Series
(5) One-shot mode
In down count operation, the count stops when an underflow event (transition from “0000H” to “FFFFH”) occurs.
This function can generate an interrupt at each underflow. While the counter is operating, a rectangular wave
form indicating that the count is in progress can be output form the TOT0 and TOT1 pins.
(6) Block diagram
Internal data bus
TMRLR0 *1
<TMRLR1>
16-bit reload register
Reload
control circuit
Reload signal
TMR0 *1
<TMR1>
16-bit timer register (down counter)
UF
CLK
Machine
clock
Prescaler
Gate input
3
Valid clock
decision circuit
Wait signal
To UART 0,1*1
<To A/D converter>
CLK
Input
control
circuit
Pins
P12/TIN0 *1
<P07/TIN1>
Clock
selector
External clock
3

2


P11/TOT0 *1
<P06/TOT1>
Select
signal
Operation
control
circuit
CSL1 CSL0 WOD2 WOD1 WOD0 OUTE OUTL RELD INTE UF CNTE TRG
Timer control status register (TNGSR0)*1
<TNGSR1>
*1: Channel 0 and channel 1. Figures in <
*2: Interrupt number
40
Pins
EN
Function selection

Output signal
generator
Inverted
circuit
> are for channel 1.
Interrupt
request signal
#17 (11h)*2
<#28 (1CH)>
MB90420G/425G Series
5. Real Time Watch Timer
The real time watch timer is composed of a real time watch timer control register, sub second data register,
second/minute/hour data registers, 1/2 clock divider, 21-bit prescaler and second/minute/hour counters. Because
the MCU oscillation frequency operates on a given real time watch timer operation, a 4 MHz frequency is
assumed. The real time watch timer operates as a real world timer and provides real world time information.
• Block diagram
OE
Main oscillator clock
1/2 clock
divider
21-bit
prescaler CO
OE
WOT
EN
Sub second
register
UPDT
ST
Second
CI
EN counter
LOAD
Hour
counter
Minute
counter
CO
6-bit
CO
6-bit
CO
5-bit
Second/minute/hour register
INTE0 INT0
INTE1 INT1
INTE2 INT2
INT3
INT3
IRQ#30
41
MB90420G/425G Series
6. PPG Timer
The PPG timer consists of a prescaler, one 16-bit down-counter, 16-bit data register with buffer for period setting,
and 16-bit compare register with buffer for duty setting, plus pin control circuits.
The timer can output pulses synchronized with an externally input soft trigger. The period and duty of the output
pulse can be adjusted by rewriting the values in the two 16-bit registers.
(1) PWM function
Programmable to output a pulse, synchronized with a trigger.
Can also be used as a D/A converter with an external circuit.
(2) One-shot function
Detects the edge of a trigger input, and outputs a single pulse.
(3) Pin control
• Set to “1” at a duty match (priority) .
• Reset to “0” at a counter borrow event
• Has a fixed output mode to output a simple all “L” ( or “H”) signal.
• Polarity can be specified
(4) 16-bit down counter
• Select from four types of counter operation clocks. Four internal clocks (φ, φ/4, φ/16, φ/64)
cycles.
• The counter value can be initialized to “FFFFH” at a reset or counter borrow event.
φ : Machine clock
(5) Interrupt requests
• Timer startup
• Counter borrow event (period match)
• Duty match event
• Counter borrow event (period match) or duty match event
(6) Multiple channels can be set to start up at an external trigger, or to restart during operation.
42
MB90420G/425G Series
(7) Block diagram
PCSR
PDUT
Prescaler
1/1
1/4
CK
1/16
Load
PSCT
16-bit down counter
1/64
Start
CMP
Borrow
PPG mask
Machine clock
S
PPG
output
Q
R
Inversion bit
Enable
Trigger input
P05/SCK1/TRG
Interrupt
selection
Interrupt IRQ#25, 27, 29
Edge detection
Soft trigger
43
MB90420G/425G Series
7. Delayed Interrupt Generator Module
The delayed interrupt generator module is a module that generates interrupts for task switching. This module
makes it possible to use software to generate/cancel interrupt requests to the F2MC-16LX CPU.
• Block diagram
F2MC-16LX bus
Delayed interrupt source generate/delete decoder
Source latch
44
MB90420G/425G Series
8. DTP/External Interrupt Circuit
The DTP (Data transfer peripheral) /external interrupt circuit is located between an externally connected peripheral device and the F2MC-16LX CPU and sends interrupt requests or data transfer requests generated from the
peripheral device to the CPU, thereby generating external interrupt requests or starting the expanded intelligent
I/O services (EI2OS) .
(1) DTP/external interrupt function
The DTP/external interrupt function uses a signal input from the DTP/external interrupt pin as a startup source.
And it is accepted by the CPU by the same procedure as a normal hardware interrupt, and can generate an
external interrupt or start the expanded intelligent I/O service (EI2OS) .
When the interrupt is accepted by the CPU, if the corresponding expanded intelligent I/O service (EI2OS) is
prohibited the interrupt operates as an external interrupt function and branches to an interrupt routine. If the
EI2OS is permitted the interrupt functions as a DTP function, using EI2OS for automatic data transfer, then
branching to an interrupt routine after the completion of the specified number of data transfers.
External interrupt
Input pins
Interrupt sources
DTP function
8 pins (P50/INT0/ADTG to P53/INT3, P00/SIN0/INT4 to P03/INT7)
Request level setting register (ELVR) sets the detection level, or selected edge for
each pin
“H” level/ “L” level/ rising edge/falling
edge input
“H” level/ “L” level input
Interrupt numbers
#16 (10H) , #18 (12H) , #20 (14H) , #22 (16H) , #24 (18H) , #26 (1AH)
Interrupt control
DTP/interrupt enable register (ENIR) permits/prohibits interrupt request output
Interrupt flags
DTP/interrupt enable register (EIRR) stores interrupt sources
Process selection
When EI2OS prohibited (ICR : ISE = 0)
When EI2OS is enabled (ICR : ISE = 1)
Processing
Branch to external interrupt processing
routine
EI2OS performs automatic data transfer,
then after a specified number of cycles,
branches to an interrupt routine
ICR : Interrupt control register
45
MB90420G/425G Series
(2) Block diagram
Request level setting register (ELVR)
LB7 LA7 LB6 LA6 LB5 LA5 LB4 LA4 LB3 LA3 LB2 LA2 LB1 LA1 LB0 LA0
Pin
Selector
Selector
Internal data bus
P03/INT7
Pin
P50/INT0
Pin
Selector
Selector
P02/INT6
Pin
P51/INT1
Selector
Pin
Selector
P01/INT5
Pin
P52/INT2
Selector
Pin
Selector
Pin
P00/INT4
P53/INT3
ER7
ER6
ER5
ER4
ER3
ER2
ER1
ER0
Interrupt request number
#16 (10H)
#18 (12H)
#20 (14H)
#22 (16H)
#24 (18H)
#26 (1AH)
EN7
46
EN6
EN5
EN4
EN3
EN2
EN1
EN0
MB90420G/425G Series
9. 8/10-bit A/D Converter
The 8/10-bit A/D converter has functions for using RC sequential comparator conversion format to convert analog
input voltage into 10-bit or 8-bit digital values. The input signal is selected from 8-channel analog input pins, and
the conversion start can be selected from three types : by software, 16-bit reload timer 1 or a trigger input from
an external signal pin.
(1) 8/10-bit A/D converter functions
The A/D converter takes analog voltage signals (input voltage) input at analog input pins, and converts these to
digital values, providing the following features.
• Minimum conversion time is 6.13 µs (at machine clock frequency of 16 MHz, including sampling time) .
• Minimum sampling time is 3.75 µs (at machine clock 16 MHz)
• The conversion method is an RC sequential conversion in comparison with a sample hold circuit.
• Either 10-bit or 8-bit resolution can be selected.
• The analog input pin can select from 8 channels by a program setting.
• At completion of A/D conversion, an interrupt request can be generated, or EI2OS can be started.
• Because the conversion data protection function operates in an interrupt enabled state, no data is lost even
in continuous conversion.
• The conversion start source may be selected from : software, 16-bit reload timer 1 (rising edge) , or external
trigger input (falling edge) .
Three conversion modes are available
Conversion mode
Single conversion operation
Single conversion mode
Scan conversion operation
Converts multiple consecutive channels (up
Converts the specified channel (1 channel
to 8 channels may be specified) one time,
only) one time, then stops.
then stops.
Continuous conversion Converts the specified channel (1 channel Converts multiple consecutive channels (up
mode
only) repeatedly.
to 8 channels may be specified) repeatedly.
Converts multiple consecutive channels (up
Converts the specified channel (1 channel
to 8 channels may be specified) , however
Stop conversion mode only) one time, then pauses, waits until
pauses after conversion of each channel,
the next start is applied.
waits until the next start is applied.
47
MB90420G/425G Series
(2) Block diagram
AVCC
AVRH
AVSS
D/A converter
Input circuit
MPX
Sequential comparator
register
Comparator
Decoder
Sample & hold circuit
A/D data register
ADCRH, L
A/D control status register, high
A/D control status register, low
16-bit reload timer 1
Timer start
P50/ADTG
φ
48
ADCSH, L
Operating clock
Trigger start
Prescaler
F2MC-16LX bus
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
MB90420G/425G Series
10. UART
The UART is a general purpose serial data communication interface for synchronous communication, or asynchronous (start-stop synchronized) communication with external devices. Functions include normal bi-directional
functions, as well as master/slave type communication functions (multi-processor mode : master side only
supported) .
(1) UART Functions
The UART is a general purpose serial data communication interface for sending and receiving of serial data with
other CPU’s or peripheral devices, and provides the following functions.
Functions
Data buffer
Transfer modes
Baud rate
Data length
Signal type
Receiving error detection
Interrupt request
Master/slave type
communication function
(multi-processor mode)
Full duplex double buffer
• Clock synchronous (no start/stop bits)
• Clock asynchronous (start-stop synchronized)
• Exclusive baud rate generator provides a selection of 8 rates
• External clock input enabled
• Internal clock (can use internal clock feed from 16-bit reload timer)
• 7-bit (asynchronous normal mode only)
• 8-bit
NRZ (Non return to zero)
• Framing errors
• Overrun errors
• Parity errors (not enabled in multiprocessor mode)
• Receiving interrupt (receiving completed, receiving error detection)
• Sending interrupt (sending completed)
• Sending/receiving both compatible with expanded intelligent I/O services
(EI2OS)
1 (master) -to-n (slave) communication enabled (only master side supported) .
Note : The UART in clock synchronous transfer does not add start bits or stop bits, but transfers data only.
Operating mode
0
Data length
No parity
Normal mode
1
Multi-processor mode
2
Normal mode
Parity
7-bit or 8-bit
Synchronization
Asynchronous
8+1*

Asynchronous
8

Synchronous
1
Stop bit length
1-bit or 2-bit *2
None
 : Setting not available
*1 : “+” indicates an address/data selection bit (A/D) for communication control.
*2 : In receiving only one stop bit is detected.
49
MB90420G/425G Series
(2) Block diagram
Control bus
Machine clock
Exclusive baud
rate generator
Communication
prescaler
Control register
(CDCR)
Receiving
interrupt signals
#39 (27H) *
<#37 (25H) *>
Sending
interrupt signals
#40 (28H) *
<#38 (26H) *>
Sending clock
Clock
selector
Receiving
clock
16-bit
reload timer
Pins
P02/SCK0
<P05/SCK1>
Receiving
control
circuit
Sending
control
circuit
Start bit
detection circuit
Sending start
circuit
Receiving bit
counter
Sending bit
counter
Receiving parity
counter
Sending parity
counter
Pin
P01/SOT0
<P04/SOT1>
Receiving
shift register
Pins
P00/SIN0
<P03/SIN1>
Sending
shift register
Receiving
end
SIDR0/1
Sending start
SODR0/1
Receiving status
judging circuit
EI2OS receiving error
generator circuit (to CPU)
Internal data bus
SMR0/1
register
MD1
MD0
CS2
CS1
CS0
SCKE
SOE
*: Interrupt number
50
SCR0/1
register
PEN
P
SBL
CL
A/D
REC
RXE
TXE
SSR0/1
register
PE
ORE
FRE
RDRF
TDRE
BOS
RIE
TIE
MB90420G/425G Series
11. CAN Controller
The CAN controller is a self-contained module within a 16-bit microcomputer (F2MC-16LX) . The CAN (controller
area network) controller is the standard protocol for serial transmissions among automotive controllers and is
widely used in the industry.
(1) CAN controller features
The CAN controller has the following features.
• Conforms to CAN specifications version 2.0 A and B.
Supports sending and receiving in standard frame and expanded frame format.
• Supports data frame sending by means of remote frame receiving.
• 16 sending/receiving message buffers
29-bit ID and 8-byte data
Multi-level message buffer configuration
• Supports full bit compare, full bit mask as well as partial bet mask filtering.
Provides two receiving mask registers for either standard frame or expanded frame format.
• Bit speed programmable from 10 KB/s to 1 MB/s (at machine clock 16 MHz)
• CAN WAKE UP function
• The MB90420G series has a two-channel built-in CAN controller. The MB90425G series has a 1-channel builtin CAN controller.
51
MB90420G/425G Series
(2) Block diagram
F2MC-16LX bus
Machine
clock
PSC
PR
PH
RSJ
TOE
TS
RS
CSR HALT
NIE
NT
NS1,0
TQ (operating clock)
Prescaler 1-to-64
frequency divider
Bit timing generator
SYNC, TSEG1, TSEG2
BTR
Node status change
interrupt generator
Bus
state
machine
Node status
change interrupt
Error
control
RTEC
Send/receive
sequencer
BVALR
TREQR
TBFx
clear
Send buffer
decision
TBFX
Data
counter
TCANR
TRTRR
TCR
TBFx, set, clear
TIER
Sending completed
interrupt generator
RCR
RBFx, set
RIER
Receiving completed
interrupt generator
RRTRR
RBFx, TBFx, set clear
IDR0 ~ 15,
DLCR0 ~ 15,
DTR0 ~ 15,
RAM
LEIR
52
ARBLOST
RBFx
set
TDLC
RDLC
Receiving
completed
interrupt
Receiving bufferx
decision
RBFX
RAM address
generator
ACK
CRCER
CRC generator
error check
Receiving
shift register
IDSEL
Receiving
filter
TX
generator generator
ARBLOST
0
1
Output
driver
Stuffing
CRC
Sending
completed
interrupt
AMSR
AMR1
Overload
frame
generator
Send shift
register
RFWTR
AMR0
Error
frame
generator
Receiving
filter
control
TDLC RDLC IDSEL
BITER, STFER,
CRCER, FRMER,
ACKER
TBFX
ROVRR
IDLE, SUSPND,
TX, RX, ERR,
OVRLD
BITER
ACKER
FRMER
RBFX, TBFX, RDLC, TDLC, IDSEL
STFER
Destuffing/
stuffing
error check
Arbitration
check
Bit error
check
Acknowledge error
check
PH1
Form error
check
Input
latch
RX
MB90420G/425G Series
12. LCD Controller/Driver
The LCD controller/driver has a built-in 16 × 8-bit display data memory, and controls the LCD display by means
of four common outputs and 24 segment outputs. A selection of three duty outputs are available. This block can
drive an LCD (liquid crystal display) panel directly.
(1) LCD controller/driver functions
The LCD controller/driver provides functions for directly displaying the contents of display data memory (display
RAM) on the LCD panel by means of segment output and common output.
• LCD drive voltage divider resistance is built-in. External divider resistance can also be connected.
• Up to 4 common outputs (COM0 to COM3) and 24 segment outputs (SEG0 to SEG23) can be used.
• 16-byte display data memory (display RAM) is built-in.
• The duty can be selected at 1/2, 1/3, 1/4 (limited by bias setting) .
• Drives the LCD directly.
Bias
1/2 duty
1/2 bias
1/3 bias
1/3 duty
1/4 duty
×
×
×
: Recommended mode
× : Use prohibited
Note : When the SEG12 to SEG23 pins have been selected as general purpose ports by the LCRH setting, they
cannot be used for segment output.
53
MB90420G/425G Series
(2) Block diagram
V0 V1 V2 V3
LCDC control register Low
(LCRL)
Divider resistance
4
Prescaler
Timing
controller
Common
driver
24
Display RAM,
16 × 8 bits
Segment
driver
LCDC control register High
(LCRH)
Controller
54
COM0
COM1
COM2
COM3
AC circuit
Internal data bus
Time base
timer output
Driver
SEG0
SEG1
SEG2
SEG3
SEG4
∼
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
MB90420G/425G Series
13. Low voltage/Program Looping Detection Reset Circuit
The Low voltage detection reset circuit is a function that monitors power supply voltage in order to detect when
a voltage drops below a given voltage level. When a low voltage condition is detected, an internal reset signal
is generated.
The Program Looping detection reset circuit is a count clock with a 20-bit counter that generates an internal
reset signal if not cleared within a given time after startup.
(1) Low voltage detection reset circuit
Detection voltage
4.0 V ± 0.3 V
When a low voltage condition is detected, the low voltage detection flag (LVRC : LVRF) is set to “1” and an
internal reset signal is output.
Because the low voltage detection circuit continues to operate even in stop mode, detection of a low voltage
condition generates an internal reset and releases stop mode.
During an internal RAM write cycle, an internal reset is generated after the completion of writing. During the
output of this internal reset, the reset output from the low voltage detection circuit is suppressed.
(2) Program Looping detection reset circuit
The Program Looping detection reset circuit is a counter that prevents program looping. The counter starts
automatically after a power-on reset, and must be continually cleared within a given time. If the given time interval
elapses and the counter has not been cleared, a cause such as infinite program looping is assumed and an
internal reset signal is generated. The internal reset generated form the Program Looping detection circuit has
a width of 5 machine cycles.
Interval duration
220/FC (Approx. 262 ms *)
* : This value assumes an oscillation clock waveform of 4 MHz.
During recovery from standby mode the detection period is the maximum interval plus 20 µs.
This circuit does not operate in modes where CPU operation is stopped.
The Program Looping detection reset circuit counter is cleared under any of the following conditions.
1. Writing “0” to the LVRC register CL bit
2. Internal reset
3. Main oscillation clock stop
4. Transition to sleep mode
5. Transition to time base timer mode or clock mode
55
MB90420G/425G Series
(3) Block diagram
Voltage comparator
circuit
VCC
−
+
VSS
Constant
voltage
source
Program Looping detection circuit
Main oscillation clock
Over flow
Noise canceller
Clear
Reserved Reserved Reserved Reserved
CL
Internal reset
Counter
LVRF Reserved CPUF
Low voltage/CPU operation detection reset control register (LVRC)
Internal data bus
56
MB90420G/425G Series
14. Stepping Motor Controller
The stepping motor controller is composed of two PWM pulse generators, four motor drivers and selector logic
circuits.
The four motor drivers have a high output drive capacity and can be directly connected to the four ends of two
motor coils. They are designed to operate together with the PWM pulse generators and selector logic circuits
to control motor rotation. A synchronization mechanism assures synchronization of the two PWM pulse generators.
• Block diagram
Machine clock
OE1
Prescaler
CK
PWM1Pn
PWM1 pulse generator
EN
P1
Output enable
Selector
PWM
PWM1Mn
P0
PWM1 compare register
PWM1 selector register
OE2
Output enable
CK
SC
PWM2Pn
PWM2 pulse generator
CE
EN
Selector
PWM
PWM2Mn
Load
PWM2 compare register
BS
PWM2 select register
n:0~3
57
MB90420G/425G Series
15. Sound Generator
The sound generator is composed of a sound control register, frequency data register, amplitude data register,
decrement grade register, tone count register, PWM pulse generator, frequency counter, decrement counter,
and tone pulse counter.
• Block diagram
Clock input
Prescaler
S1
S0
8-bit PWM
pulse generator CO
EN
PWM
CI
Frequency
counter
Toggle
flip-flop
CO
EN
Reload
Amplitude data
register
Reload
Q
1/d
Frequency data
register
DEC
DEC
Decrement
counter
D
EN
CI
CO
EN
SGA
OE1
Decrement grade
register
Tone pulse
counter
Tone count
register
Blend
TONE
OE1
SGO
OE2
OE2
CI
CO
EN
INTE
INT
ST
IRQ#34
58
MB90420G/425G Series
16. Address Match Detect Function
If the address setting is the same as the address detection register, an INT9 instruction is executed. The integrated
address match detection function can be implemented by processing the INT9 interrupt service routine.
Two address registers are used, each with its own compare enable bit. When there is a match between the
address register and program counter, and the compare enable bit is set to “1” , the INT9 instruction is forcibly
executed by the CPU.
Address latch
Address detection
register
Compare
• Block diagram
Enable bit
F2MC-16LX
CPU core
F2MC-16LX bus
59
MB90420G/425G Series
17. ROM Mirror Function Select Module
The ROM mirror function select module uses a select register setting to enable the contents of ROM allocated
to the FF bank to be viewed in the 00 bank.
• Block diagram
F2MC-16LX bus
ROM mirror function select register
Address area
FF bank
00 bank
ROM
60
MB90420G/425G Series
■ ELECTRICAL CHARACTERISTICS
1. Absolute Maximum Ratings
Parameter
Power supply voltage*1
Symbol
VCC
VSS − 0.3
VSS + 6.0
V
AVCC
VSS − 0.3
VSS + 6.0
V
AVCC = VCC*2
AVRH
VSS − 0.3
VSS + 6.0
V
AVCC ≥ AVRH*2
DVCC
VSS − 0.3
VSS + 6.0
V
DVCC = VCC*2
VI
VSS − 0.3
VCC + 0.3
V
*3
VO
VSS − 0.3
VCC + 0.3
V
ICLAMP
− 400
+ 400
µA
*7

4
mA
*7
IOL1

15
mA
Other than P70 to P77, and P80 to P87
IOL2

40
mA
P70 to 77, P80 to87
IOLAV1

4
mA
Other than P70 to P77, and P80 to P87
IOLAV2

30
mA
P70 to 77, P80 to 87
ΣIOL1

100
mA
Other than P70 to P77, and P80 to P87
ΣIOL2

330
mA
P70 to 77, P80 to 87
ΣIOLAV1

50
mA
Other than P70 to P77, and P80 to P87
ΣIOLAV2

250
mA
P70 to 77, P80 to 87
I
OH1 4

−15
mA
Other than P70 to P77, and P80 to P87
I
OH2 4

−40
mA
P70 to 77, P80 to 87
I
OHAV1 5

−4
mA
Other than P70 to P77, and P80 to P87
I
OHAV2 5
*

−30
mA
P70 to 77, P80 to 87
ΣIOH1

−100
mA
Other than P70 to P77, and P80 to P87
ΣIOH2

−330
mA
P70 to 77, and P80 to 87

−50
mA
Other than P70 to P77, and P80 to P87

−250
mA
P70 to 77, P80 to 87
Maximum clamp current
Total maximum clamp current Σ| ICLAMP |
“L”level maximum
output current*4
“L”level average output
current*5
“L”level maximum
total output current
“H”level maximum
output current
“H”level average
output current
“H”level maximum
total output current
“H”level average total
output current
*
*
*
ΣI
*
ΣI
*
OHAV1 6
OHAV2 6
Power consumption
PD

500
mW
Operating temperature
TA
−40
+105
°C
TSTG
−55
+150
°C
Storage temperature
Remarks
Max
1
“L”level average total
output current
Unit
Min
Input voltage*1
Output voltage*
Rating
*1 : The parameter is based on VSS = AVSS = DVSS = 0.0 V.
*2 : AVCC, AVRH and DVCC shall never exceed VCC.
Also, AVRH shall never exceed AVCC.
*3 : The maximum current to/from and input is limited by some means with extenal components, the ICLAMP rating
supersedes the VI rating.
*4 : Maximum output current is defined as the peak value of the current of any one of the corresponding pins.
*5 : Average output current is defined as the value of the average current flowing over 100 ms at any one of the
corresponding pins. The “average value” can be calculated from the formula of “operating current” times
“operating factor”.
(Continued)
61
MB90420G/425G Series
(Continued)
*6 : Average total output current is defined as the value of the average current flowing over 100 ms at all of the
corresponding pins. The “average value” can be calculated from the formula of “operating current” times
“ operating factor”.
*7 : • Applicable to pins : P00 to P07, P10 to P15, P50 to P57, P70 to P77, P80 to P87
• Use within recommended operating conditions.
• Use at DC voltage (current) .
• The +B signal should always be applied with a limiting resistance placed between the +B signal and the
microcontroller.
• The value of the limiting resistance should be set so that when the +B signal is applied the input current to
the microcontroller pin does not exceed rated values, either instantaneously or for prolonged periods.
• Note that when the microcontroller drive current is low, such as in the power saving modes, the +B input
potential may pass through the protective diode and increase the potential at the VCC pin, and this may affect
other devices.
• Note that if a +B signal is input when the microcontroller current is off (not fixed at 0 V) , the power supply
is provided from the pins, so that incomplete operation may result.
• Note that if the +B input is applied during power-on, the power supply is provided from the pins and the
resulting supply voltage may not be sufficient to operate the power-on reset.
• Care must be taken not to leave the +B input pin open.
• Note that analog system input/output pins (LCD drive pins, comparator input pins, etc.) cannot accept +B
signal input.
• Sample recommended circuits :
• Input/Output equivalent circuits
Protective diode
VCC
+B input (0 V to 16 V)
P-ch
Limiting
resistance
N-ch
R
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
62
MB90420G/425G Series
2. Recommended Operating Conditions
Parameter
Symbol
Power supply
voltage
VCC
AVCC
DVCC
Value
Min
Max
(VSS = DVSS = AVSS = 0.0 V)
Unit
Remarks
3.7
5.5
V
(MB90F428GA, MB90F423GA, MB90428GA,
MB90427GA, MB90423GA)
Low voltage detection reset starts to work when power
supply voltage is 4.0 V ± 0.3 V.
3.0
5.5
V
(MB90F428GC, MB90F423GC, MB90428GC,
MB90427GC, MB90423GC)
4.3
5.5
V
Holding stop operation status
(MB90F428GA, MB90F423GA, MB90428GA,
MB90427GA, MB90423GA)
3.0
5.5
V
Holding stop operation status
(MB90F428GC, MB90F423GC, MB90428GC,
MB90427GC, MB90423GC)
Use a ceramic capacitor or other capacitor of equivalent
frequency characteristics. A bypass capacitor on the VCC pin
should have a capacitance greater than Cs.
Smoothing
capacitor*
CS
0.1
1.0
µF
Operating
temperature
TA
−40
+105
°C
* : For smoothing capacitor Cs connections, see the illustration below.
• C pin connection
C
CS
VSS
DVSS
AVSS
WARNING: The recommended operating conditions are required in order to ensure the normal operation of the
semiconductor device. All of the device’s electrical characteristics are warranted when the device is
operated within these ranges.
Always use semiconductor devices within their recommended operating condition ranges. Operation
outside these ranges may adversely affect reliability and could result in device failure.
No warranty is made with respect to uses, operating conditions, or combinations not represented on
the data sheet. Users considering application outside the listed conditions are advised to contact their
FUJITSU representatives beforehand.
63
MB90420G/425G Series
3. DC Characteristics
(VCC = 5.0 V±10%, VSS = DVSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Parameter
Symbol
Pin
name
Conditions
“H”level
input voltage
VIHS

VIHM
“L”level
input voltage
Unit
Remarks
Min
Typ
Max

0.8 VCC

VCC + 0.3
V
CMOS hysteresis
Automotive level
input pin*1


VCC − 0.3

VCC + 0.3
V
MD pin*2
VILS


VSS − 0.3

0.5 VCC
V
CMOS hysteresis
Automotive level
input pin*1
VILM


VSS − 0.3

VSS + 0.3
V
MD pin*2

45
72
mA

38
61
MB90428GA/GC
mA MB90427GA/GC
MB90423GA/GC

15
24
mA

13
21
MB90428GA/GC
mA MB90427GA/GC
MB90423GA/GC
Operating frequency
FCP = 16 MHz,
normal operation
ICC
Operating frequency
FCP = 16 MHz,
sleep mode
ICCS
Power supply
current*3
Value
MB90F428GA/GC
MB90F423GA/GC
MB90F428GA/GC
MB90F423GA/GC
ICTS
Operating frequency
FCP = 2 MHz,
time base timer mode

0.75
1.0
mA
ICCL
Operating frequency
FCP = 8 kHz, TA = + 25 °C,
subclock operation

0.35
0.7
mA
30
MB90F428GC
MB90F423GC
µA MB90428GC
MB90427GC
MB90423GC
100
MB90F428GA
MB90F423GA
µA MB90428GA
MB90427GA
MB90423GA
20
MB90F428GC
MB90F423GC
µA MB90428GC
MB90427GC
MB90423GC
100
MB90F428GA
MB90F423GA
µA MB90428GA
MB90427GA
MB90423GA
VCC
ICCLS
ICCT
Operating frequency
FCP = 8 kHz, TA = + 25 °C,
sub sleep operation
Operating frequency
FCP = 8 kHz, TA = + 25 °C,
clock mode



ICCH
10
40
5
TA = + 25 °C,
stop mode

40
(Continued)
64
MB90420G/425G Series
(VCC = 5.0 V±10%, VSS = DVSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Parameter
Sym
bol
Input leakage
current
IIL
All input pins
Input
capacitance 1
Pin name
Conditions
Value
Unit
Min
Typ
Max
VCC = DVCC = AVCC = 5.5 V
VSS < VI < VCC
−5

5
µA
CIN1
Other than
Vcc, Vss,
DVcc, DVss,
Avcc, Avss, C,
P70 to P77,
P80 to P87


5
15
pF
Input
capacitance 2
CIN2
P70 to P77,
P80 to P87


15
45
pF
Pull-up
resistance
RUP
RST, MD0,
MD1

25
50
100
kΩ

25
50
100
kΩ
Pull-down
resistance
RDOWN MD2
Output H
voltage 1
VOH1
Other than
P70 to P77,
P80 to P87
VCC = 4.5 V
IOH = −4.0 mA
VCC −
0.5


V
Output H
voltage 2
VOH2
P70 to P77,
P80 to P87
VCC = 4.5 V
IOH = −30.0 mA
VCC −
0.5


V
Output L
voltage 1
VOL1
Other than
P70 to P77,
P80 to P87
VCC = 4.5 V
IOL = 4.0 mA


0.4
V
Output L
voltage 2
VOL2
P70 to P77,
P80 to P87
VCC = 4.5 V
IOL = 30.0 mA


0.55
V
PWM1Pn,
Large current
PWM1Mn,
output drive
∆VOH2 PWM2Pn,
capacity
PWM2Mn,
variation 1
n = 0 to 3
VCC = 4.5 V
IOH = 30.0 mA
VOH2 maximum variation
0

90
mV *4
VCC = 4.5 V
IOH = 30.0 mA
VOL2 maximum variation
0

90
mV *4
50
100
200
kΩ
Large current
output drive
capacity
variation 2
∆VOL2
PWM1Pn,
PWM1Mn,
PWM2Pn,
PWM2Mn,
n = 0 to 3
LCD internal
divider
resistance
RLCD
V0 to V1,
V1 to V2,
V2 to V3

Remarks
(Continued)
65
MB90420G/425G Series
(Continued)
(VCC = 5.0 V±10%, VSS = DVSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Pin name
Parameter
Symbol
COM0 to
COM3
output impedance
RVCOM
COMn
(n = 0 to 3)
SEG0 to
SEG3
output impedance
RVSEG
ILCDC
LCD leakage
current
Conditions
Value
Unit
Min
Typ
Max



2.5
kΩ
SEGn
(n = 00 to 23)



15
kΩ
V0 to V3
COMm
(m = 00 to 23)
SEGn
(n = 00 to 23)

−5.0

+5.0
µA
Remarks
*1 : All input pins except X0, X0A, MD0, MD1, MD2 pins.
*2 : MD0, MD1, MD2 pins.
*3 : Supply current values assume external clock feed from the X1 pin and X1A pin. Users must be aware
that supply current levels differ depending on whether an external clock or oscillator is used.
*4 : Defined as maximum variation in VOH2/VOL2 with all channel 0 PWM1P0/PWM1M0/PWM2P0/PWM2M0 simultaneously ON. Similarly for other channels.
66
MB90420G/425G Series
4. AC Characteristics
(VCC = 5.0 V±10%, VSS = DVSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
(1) Clock timing
Parameter
Symbol
Pin name
FC
Unit
Remarks
Typ
Max
X0, X1

4

MHz
FLC
X0A, X1A

32.768

kHz
tCYL
X0, X1

250

ns
tLCYL
X0A, X1A

30.5

µs
PWH, PWL
X0
10


ns
PWLH, PWLL
X0A

15.2

µs
tcr, tcf
X0, X0A


5
ns
FCP

2

16
MHz
FLCP


8.192

kHz Using sub clock
tCP

62.5
—
500
ns
Using main clock,
PLL clock
tLCP


122.1

µs
Using sub clock
Base oscillation
clock cycle time
Input clock
rise, fall time
Value
Min
Base oscillation
clock frequency
Input clock pulse
width
Conditions
Input operating
clock frequency
Input operating
clock cycle time

Use duty ratio of
40 to 60% as a guideline
With external
clock signal
Using main clock,
PLL clock
• X0 clock timing
tCYL
0.8 VCC
X0
0.2 VCC
PWH
PWL
tcf
tcr
• X0A clock timing
tLCYL
0.8 VCC
X0A
0.2 VCC
PWLL
PWLH
tcf
tcr
67
MB90420G/425G Series
• Range of warranted operation
Relation between internal operating clock frequency and supply voltage
MB90F428GA, MB90F423GA, MB90428GA,
MB90427GA, MB90423GA
range of warranted operation
5.5
MB90V420G
range of warranted
operation
Supply voltage VCC (V)
4.5
3.7
3.3
3.0
PLL range of
warranted operation
MB90F428GC, MB90F423GC, MB90428GC,
MB90427GC, MB90423GC
range of warranted operation
2
8
12
16
Internal clock frequency fCP (MHz)
The MB90F428GA, MB90F423GA, MB90428GA, MB90427GA, and MB90423GA
enter reset mode at supply voltage below 4 V ± 0.3 V.
Relation between oscillator clock frequency and internal operating clock frequency
Internal operating clock frequency
PLL clock
Main clock Multiplier
×1
Oscillation clock
frequency
4 MHz
2 MHz

Multiplier
×2
Multiplier
×3
Multiplier
×4
8 MHz
12 MHz
16 MHz
Frequency
C1
C2
4 MHz
39 [pF] (Typ)
39 [pF] (Typ)
• Sample oscillator circuit
Oscillator element
manufacturer
Oscillator
Murata Manufacturing Co., Ltd. CSTCR4M00G15 ( ) A-R0
MB90F428A
X0
X1
CERALOCK 
C1
68
C2
MB90420G/425G Series
AC ratings are defined for the following measurement reference voltage values:
• Input signal waveform
Hysteresis input pin
• Output signal waveform
Output pin
0.8 VCC
2.4 V
0.5 VCC
0.8 V
69
MB90420G/425G Series
(2) Reset input
Parameter
(VCC = 5.0 V±10%, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Value
Symbol Pin name Conditions
Reset input time
tRSTL

RST
Min
Max
16 tCP

Oscillator oscillation
time* + 16 tCP

Unit
Remarks
ns
In normal operation
ms
In stop mode,
sub clock mode,
sub sleep mode,
watch mode
*: Oscillator oscillation time is the time to reach 90% amplitude. For a crystal oscillator, this is a few to several
hundred ms; for a FAR/ceramic oscillator, this is several hundred ms to a few ms, and for an external clock this
is 100 µs.
Note : tCP : See “ (1) Clock input timing”.
• Under normal operation
tRSTL
RST
0.5 VCC
0.5 VCC
• In stop mode, sub clock mode, sub sleep mode, watch mode
tRSTL
RST
0.5 Vcc
X0
Internal
operation
clock
0.5 Vcc
90 % of
amplitude
Oscillator
oscillation time
16 tcp
Oscillator stabilization wait time
Execution of the instruction
Internal
reset
70
MB90420G/425G Series
(3) Power-on reset, power on conditions
Parameter
Symbol
Power supply rise time
(VSS = 0.0 V, TA = −40 °C to +105 °C)
Pin
Conditions
name
tR
Power supply start voltage
VOFF
Power supply attained voltage
VON
Power supply cutoff time
tOFF
VCC

Value
Unit
Min
Max
0.05
30
ms

0.2
V
2.7

V
50

ms
Remarks
For repeat operation
tR
2.7 V
VCC
0.2 V
0.2 V
0.2 V
tOFF
Extreme variations in voltage supply may activate a power-on reset.
As the illustration below shows, when varying supply voltage during operation the use of a smooth
voltage rise with suppressed fluctuation is recommended. Also in this situation, the PLL clock on the
device should not be used, however it is permissible to use the PLL clock during a voltage drop of
1V/s or less.
5.0 V
VCC
A rise slope of 50 mV or
less is recommended
3.0 V
0V
VSS
RAM data hold
71
MB90420G/425G Series
(4) UART0, UART1 timing
(VCC = 5.0 V±10%, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Symbol
Pin name
Serial clock cycle time
tSCYC
SCK fall to SOT delay time
tSLOV
Valid SIN to SCK rise
tIVSH
SCK rise to valid SIN hold time
tSHIX
Serial clock “H” pulse width
tSHSL
Serial clock “L” pulse width
tSLSH
Parameter
SCK fall to SOT delay time
tSLOV
Valid SIN to SCK rise
tIVSH
SCK rise to valid SIN hold time
tSHIX
Conditions
Value
Unit
Min
Max
SCK0, SCK1
8 tCP

ns
SCK0, SCK1
SOT0, SOT1
−80
80
ns
100

ns
60

ns
4 tCP

ns
4 tCP

ns

150
ns
60

ns
60

ns

SCK0, SCK1
SIN0, SIN1
SCK0, SCK1
SCK0, SCK1
SOT0, SOT1

SCK0, SCK1
SIN0, SIN1
Notes : • AC ratings are for CLK synchronous mode.
• CL is load capacitance connected to pin during testing.
• tCP : See “ (1) Clock timing”.
• Internal shift clock mode
tSCYC
2.4 V
SCK
0.8 V
0.8 V
tSLOV
2.4 V
SOT
0.8 V
tIVSH
SIN
tSHIX
0.8 VCC
0.8 VCC
0.5 VCC
0.5 VCC
• External shift clock mode
tSLSH
SCK
0.5 VCC
tSHSL
0.8 VCC
0.8 VCC
0.5 VCC
tSLOV
2.4 V
SOT
0.8 V
tIVSH
SIN
72
tSHIX
0.8 VCC
0.8 VCC
0.5 VCC
0.5 VCC
Remarks
Internal shift
clock mode
output pin CL =
80 pF + 1•TTL
External shift
clock mode
output pin CL =
80 pF + 1•TTL
MB90420G/425G Series
(5) Timer input timing
Parameter
(VCC = 5.0 V±10%, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Symbol
Pin name
Conditions
tTIWH
tTIWL
TIN0, TIN1,
IN0, IN1,
IN2, IN3,

Input pulse width
Value
Min
Max
4 tCP

Unit
Remarks
ns
Note : tCP : See “ (1) Clock timing”.
• Timer input timing
tTIWH
0.8 VCC
TIN0 ∼ TIN1
IN0 ∼ IN3
tTIWL
0.8 VCC
0.5 VCC
(6) Trigger input timing
Parameter
Input pulse width
0.5 VCC
(VCC = 5.0 V±10%, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Symbol
Pin name
Conditions
tTRGH,
tTRGL
INT0 to INT7

Value
Unit
Remarks

ns
Under normal operation

µs
In stop mode
Min
Max
5 tCP
1
Note : tCP : See “ (1) Clock timing”.
• Trigger input timing
tTRGH
INT0 ∼ INT7
0.8 VCC
tTRGL
0.8 VCC
0.5 VCC
0.5 VCC
73
MB90420G/425G Series
(7) Low voltage detection
(VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Symbol Pin name Conditions
Parameter
Value
Min
Typ
Max
Remarks
Detection voltage
VDL
VCC

3.7
4.0
4.3
V
During voltage
drop
Hysteresis width
VHYS
VCC

0.1


V
During voltage
rise
Power supply voltage
fluctuation ratio
dV/dt
VCC

−0.1

0.02
V/µs
Detection delay time
td




35
µs
Internal reset
VCC
dV
dt
VHYS
Vni
td
74
Unit
td
MB90420G/425G Series
5. A/D Conversion Block
(1) Electrical Characteristics
Parameter
(VCC = AVCC = 5.0 V±10%, VSS = AVSS = 0.0 V, TA = −40 °C to +105 °C)
Symbol
Pin name
Resolution

Total error
Value
Unit
Remarks
Min
Typ
Max



10
bit




±5.0
LSB
Non-linear error




±2.5
LSB
Differential linear error




±1.9
LSB
Zero transition voltage
VOT
AN0 to AN7
AVSS
AVSS
AVSS
− 3.5 LSB + 0.5 LSB + 4.5 LSB
V
Full scale transition
voltage
VFST
AN0 to AN7
AVRH
AVRH
AVRH
− 6.5 LSB − 1.5 LSB + 1.5 LSB
V
1 LSB =
(AVRH − AVSS)
/ 1024
Sampling time
tSMP

2.000


µs
*1
Compare time
tCMP

4.125


µs
*2
A/D conversion time
tCNV

6.125


µs
*3
Analog port
input current
IAIN
AN0 to AN7


10
µA
VAVSS = VAIN = VAVCC
Analog input current
VAIN
AN0 to AN7
0

AVRH
V
AVR+
AVRH
3.0

AVCC
V

2.3
6.0
mA


5
µA
*4
Reference voltage
Power supply current
IA
IAH
AVCC
Reference voltage feed
current
IR
AVRH
50
180
260
µA
VAVRH = 5.0 V
IRH
AVRH


5
µA
*4
Inter-channel variation
—
AN0 to AN7


4
LSB
*1 : At FCP = 16 MHz, tSMP = 32 × tCP = 2.000 (µs) .
*2 : At FCP = 16 MHz, tCMP = 66 × tCP = 4.125 (µs) .
*3 : Equivalent to conversion time per channel at FCP = 16 MHz, and selection of tSMP = 32 × tCP and tCMP = 32 × tCP.
*4 : Defined as supply current (when VCC = AVCC = AVRH = 5.0 V) with A/D converter not operating, and CPU in
stop mode.
75
MB90420G/425G Series
• Notes of the external impedance of the analog input and its sampling time
• A/D converter with sample and hold circuit. If the external impedance is too high to keep sufficient sampling
time, the analog voltage charged to the internal sample and hold capacitor is insufficient, adversely affecting
A/D conversion presicion.
• Analog input circuit model
R
Analog input
Comparator
C
During sampling : ON
R
2.4 kΩ (Max)
2.6 kΩ (Max)
3.2 kΩ (Max)
MB90420GA/420GC
MB90F420GA/F420GC
MB90V420G
C
36.4 pF (Max)
28.0 pF (Max)
30.0 pF (Max)
Note : The values are reference values.
• To satisfy the A/D conversion precision standard, consider the relationship between the external impedance
and minimum sampling time and either adjust the resistor value and operating frequency or decrease the
external impedance so that the sampling time is longer than the minimum value.
• The relationship between the external impedance and minimum sampling time
(External impedance = 0 kΩ to 20 kΩ)
MB90V420G
MB90V420G
100
90
80
70
60
50
40
30
20
10
0
MB90F420GA/
F420GC
0
5
10
External impedance [kΩ]
External impedance [kΩ]
(External impedance = 0 kΩ to 100 kΩ)
MB90420GA/
420GC
15
20
25
30
35
Minimum sampling time [µs]
20
18
16
14
12
10
8
6
4
2
0
MB90F420GA/
F420GC
0
1
2
3
MB90420GA/
420GC
4
5
6
7
Minimum sampling time [µs]
• If the sampling time cannot be sufficient, connect a capacitor of about 0.1 µF to the analog input pin.
• About errors
As |AVRH| becomes smaller, values of relative errors grow larger.
76
8
MB90420G/425G Series
(2) Definition of terms
• Resolution
Indicates the ability of the A/D converter to discriminate in analog conversion.
10-bit resolution indicates that analog voltage can be resolved into 210 = 1024 levels.
• Total error
Expresses the difference between actual and logical values. It is the total value of errors that can come from
offset error, gain error, non-linearity error and noise.
• Linearity error
Expresses the deviation between actual conversion characteristics and a straight line connecting the device’s
zero transition point (00 0000 0000 ←→ 00 0000 0001) and full scale transition point (11 1111 1110 ←→ 11
1111 1111) .
• Differential linearity error
Expresses the deviation of the logical value of input voltage required to create a variation of 1 SLB in output
code.
• 10-bit A/D converter conversion characteristics
11
11
11
11
1111
1111
1111
1111
1111
1110
1101
1100
.
.
1 LSB × N + VOT
.
.
Digital output
.
.
.
.
.
Linearity error
.
.
.
.
00 0000 0011
00 0000 0010
00 0000 0001
00 0000 0000
VNT V(N + 1)T
VOT
VFST
Analog input
1 LSB = VFST − VOT
1022
Linearity error =
Differential linearity error =
VNT − (1 LSB × N + VOT)
[LSB]
1 LSB
V (N + 1) T − VNT
− 1 [LSB]
1 LSB
77
MB90420G/425G Series
6. Flash Memory Program and Erase Performances
Parameter
Remarks
15
s
Excludes 00H programming prior erasure
5

s
Excludes 00H programming prior erasure

16
3,600
µs
Excludes system-level overhead

10,000


cycle
Average
TA = + 85 °C
10


year *
Sector erase time
Chip erase time
Word (16 bit width)
programming time
Erase/Program cycle
Flash data
retention time
Value
Unit
Conditions
TA = + 25 °C
VCC = 5.0 V
Min
Typ
Max

1

* : This value comes from the technology qualification. (using Arrhenius equation to translate high temperature
measurements into normalized value at + 85 °C)
78
MB90420G/425G Series
■ EXAMPLE CHARACTERISTICS
ICC − VCC (TA = +25 °C)
40
35
FC = 16 MHz
30
ICC (mA)
25
FC = 11 MHz
20
FC = 8 MHz
15
FC = 5 MHz
10
FC = 4 MHz
5
FC = 2 MHz
0
3.5
4.5
5.5
6.5
VCC (V)
ICTS − VCC (TA = +25 °C)
FC = 16 MHz
900
800
FC = 11 MHz
FC = 8 MHz
FC = 5 MHz
600
500
FC = 4 MHz
FC = 2 MHz
400
300
200
100
0
3.5
4.5
5.5
6.5
VCC (V)
ICCL − VCC (FC = 8 kHz)
500
400
ICCL (µA)
ICTS (µA)
700
TA = +25 °C
300
TA = +125 °C
TA = −40 °C
200
100
0
3.5
4.5
5.5
6.5
VCC (V)
(Continued)
79
MB90420G/425G Series
(Continued)
ICCLS − VCC (FC = 8 kHz)
70
60
TA = +125 °C
ICCLS (µA)
50
40
TA = +25 °C
30
TA = −40 °C
20
10
0
3.5
4.5
5.5
6.5
VCC (V)
ICCT − VCC (FC = 8 kHz)
70
60
TA = +125 °C
ICCT (µA)
50
40
TA = +25 °C
30
TA = −40 °C
20
10
0
3.5
4.5
5.5
VCC (V)
80
6.5
MB90420G/425G Series
■ ORDERING INFORMATION
Part number
Package
MB90F423GAPF
MB90F423GCPF
MB90F428GAPF
MB90F428GCPF
MB90423GAPF
MB90423GCPF
MB90427GAPF
MB90427GCPF
MB90428GAPF
MB90428GCPF
Plastic QFP, 100-pin
(FPT-100P-M06)
MB90F423GAPFV
MB90F423GCPFV
MB90F428GAPFV
MB90F428GCPFV
MB90423GAPFV
MB90423GCPFV
MB90427GAPFV
MB90427GCPFV
MB90428GAPFV
MB90428GCPFV
Plastic LQFP, 100-pin
(FPT-100P-M05)
Remarks
81
MB90420G/425G Series
■ PACKAGE DIMENSIONS
Note 1) * : These dimensions do not include resin protrusion.
Note 2) Pins width and pins thickness include plating thickness.
Note 3) Pins width do not include tie bar cutting remainder.
Plastic QFP, 100-pin
(FPT-100P-M06)
23.90±0.40(.941±.016)
* 20.00±0.20(.787±.008)
80
51
81
50
0.10(.004)
17.90±0.40
(.705±.016)
*14.00±0.20
(.551±.008)
INDEX
Details of "A" part
100
1
30
0.65(.026)
"A"
C
0.25(.010)
+0.35
3.00 –0.20
+.014
.118 –.008
(Mounting height)
0~8˚
31
0.32±0.05
(.013±.002)
0.13(.005)
M
0.17±0.06
(.007±.002)
0.80±0.20
(.031±.008)
0.88±0.15
(.035±.006)
0.25±0.20
(.010±.008)
(Stand off)
2002 FUJITSU LIMITED F100008S-c-5-5
Dimensions in mm (inches)
Note : The values in parentheses are reference values.
(Continued)
82
MB90420G/425G Series
(Continued)
Plastic LQFP, 100-pin
(FPT-100P-M05)
Note 1) * : These dimensions do not include resin protrusion.
Note 2) Pins width and pins thickness include plating thickness.
Note 3) Pins width do not include tie bar cutting remainder.
16.00±0.20(.630±.008)SQ
* 14.00±0.10(.551±.004)SQ
75
51
76
50
0.08(.003)
Details of "A" part
+0.20
100
26
1
25
C
0.20±0.05
(.008±.002)
0.08(.003)
M
0.10±0.10
(.004±.004)
(Stand off)
0˚~8˚
"A"
0.50(.020)
+.008
1.50 –0.10 .059 –.004
(Mounting height)
INDEX
0.145±0.055
(.0057±.0022)
0.50±0.20
(.020±.008)
0.60±0.15
(.024±.006)
0.25(.010)
2003 FUJITSU LIMITED F100007S-c-4-6
Dimensions in mm (inches)
Note : The values in parentheses are reference values.
83
MB90420G/425G Series
FUJITSU LIMITED
All Rights Reserved.
The contents of this document are subject to change without notice.
Customers are advised to consult with FUJITSU sales
representatives before ordering.
The information, such as descriptions of function and application
circuit examples, in this document are presented solely for the
purpose of reference to show examples of operations and uses of
Fujitsu semiconductor device; Fujitsu does not warrant proper
operation of the device with respect to use based on such
information. When you develop equipment incorporating the
device based on such information, you must assume any
responsibility arising out of such use of the information. Fujitsu
assumes no liability for any damages whatsoever arising out of
the use of the information.
Any information in this document, including descriptions of
function and schematic diagrams, shall not be construed as license
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Fujitsu assumes no liability for any infringement of the intellectual
property rights or other rights of third parties which would result
from the use of information contained herein.
The products described in this document are designed, developed
and manufactured as contemplated for general use, including
without limitation, ordinary industrial use, general office use,
personal use, and household use, but are not designed, developed
and manufactured as contemplated (1) for use accompanying fatal
risks or dangers that, unless extremely high safety is secured, could
have a serious effect to the public, and could lead directly to death,
personal injury, severe physical damage or other loss (i.e., nuclear
reaction control in nuclear facility, aircraft flight control, air traffic
control, mass transport control, medical life support system, missile
launch control in weapon system), or (2) for use requiring
extremely high reliability (i.e., submersible repeater and artificial
satellite).
Please note that Fujitsu will not be liable against you and/or any
third party for any claims or damages arising in connection with
above-mentioned uses of the products.
Any semiconductor devices have an inherent chance of failure. You
must protect against injury, damage or loss from such failures by
incorporating safety design measures into your facility and
equipment such as redundancy, fire protection, and prevention of
over-current levels and other abnormal operating conditions.
If any products described in this document represent goods or
technologies subject to certain restrictions on export under the
Foreign Exchange and Foreign Trade Law of Japan, the prior
authorization by Japanese government will be required for export
of those products from Japan.
F0410
 2004 FUJITSU LIMITED Printed in Japan
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