3 - 3
CPU
MN101C
RAM
External Interrupt
OSC1
OSC2
XI
XO
V
SS
V
DD
NRST
MMOD
P50,NWE,LED0
P51,NRE,LED1
P52,NCS
,LED2
P53,A16,SEG27,LED3
P54,A17,SEG26,LED4
TXD,SBO0,P00
RXD,SBI0,P01
SBT0,P02
SBO1,P03
SBI1,P04
SBT1,P05
NDK,BUZZER,P06
RMOUT,P10
P11
TM2IO,P12
TM3IO,P13
TM4IO,P14
IRQ0,P20
ACZ,IRQ1,P21
IRQ2,P22
IRQ3,P23
P60,A0,SEG25
P61,A1,SEG24
P62,A2,SEG23
P63,A3,SEG22
P64,A4,SEG21
P65,A5,SEG20
P66,A6,SEG19
P67,A7,SEG18
P70,SDO0,A8,SEG17
P71,SDO1,A9,SEG16
P72,SDO2,A10,SEG15
P73,SDO3,A11,SEG14
P74,SDO4,A12,SEG13
P75,SDO5,A13,SEG12
P76,SDO6,A14,SEG11
P77,SDO7,A15,SEG10
P80,D0,SEG2
P81,D1,SEG3
P82,D2,SEG4
P83,D3,SEG5
P84,D4,SEG6
P85,D5,SEG7
P86,D6,SEG8
P87,D7,SEG9
KEY0,P40
KEY1,P41
KEY2,P42
KEY3,P43
KEY4,P44
KEY5,P45
KEY6,P46
KEY7,P47
V
REF-
V
REF+
NRST,P27
Po
rt 0
P
or
t 1
P
or
t 2
P
or
t 4
Sub-clock
oscillator
System clock
oscillator
ROM
24/48 KB
8-bit Timer 2
8-bit Timer 3
16-bit Timer 4
A/D converter
1/2 KB
Serial Interface 0
Serial Interface 1
Time Base Timer 5
Watch Dog Timer
Po
rt 6
P
or
t 7
P
or
t 8
Port 5
AN7,P
A7
AN6,P
A6
AN5,P
A5
AN4,P
A4
AN3,P
A3
AN2,P
A2
AN1,P
A1
AN0,P
A0
Port A
COM3
COM2
COM1
COM0
SEG24
SEG25
L C D
V
LC3
V
LC2
V
LC1
MN101C39C-399 - MICROCOMPUTER
BLOCK DIAGRAM
