MB89160/160A Series
■ BLOCK DIAGRAM
Main clock
oscillator
X0
X1
Time-base timer
Clock controller
8-bit timer/counter
P22/TO
Subclock oscillator
(32.768 KHz)
X0A
X1A
8-bit timer/counter
8-bit PWM timer 2
P20/EC
Watch prescaler timer
Reset circuit
(WDT)
P27/PWM2*4
RST
8
8
P25/SCK
P24/SO
P23/SI
External interrupt 2
(Wake-up)
P00/INT20
to P07/INT27
8-bit serial
CMOS I/O port
P21*4, P26*4
N-ch open-drain I/O port
4
4
4
4
External interrupt 1
(Wake-up)
P10/INT10
to P13/INT13
P40/SEG16*3
to P43/SEG19
N-ch open-drain output port
8
4
P14 to P17
P44/SEG20*3
to P47/SEG23
CMOS I/O port
4
4
8
P60/SEG8*3
RAM
to P63/SEG11
LCD
P64/SEG12*3
to P67/SEG15
2
controller/driver
F2MC-8L
CPU
2
P70/COM2*3,
P71/COM3
8
2
4
SEG0 to SEG7
COM0, COM1
V0 to V3
ROM
24 × 4 bits
VRAM
N-ch open-drain output port
P33/C0*2
P32/C1*2
8
8
Reference voltage
P50/AN0
to P57/AN7
1
generator and booster*
8-bit A/D converter
AVCC
AVR
AVSS
8-bit PWM timer 1
P31/PWM1
Remote control output
P30/RCO/BUZ
Buzzer output
Other pins
MOD0, MOD1, VCC, VSS
N-ch open-drain I/O port
(P30 and P31 are a CMOS
output type.)
*1: Selected by mask option
*2: Used as ports without a reference voltage generator and booster
*3: Functions selected by mask option. (For information on selecting procedure, see section “■Mask Options.”)
*4: Heavy-current drive type
21
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