CHAPTER 1 OUTLINE
31
User’s Manual U11302EJ4V0UM
1.7 Block Diagram
Remarks 1.
The internal ROM and RAM capacities vary depending on the product.
2.
Pin names in parentheses only apply to the
µ
PD78P0208.
16-bit timer/
event counter
8-bit timer/
event counter 1
8-bit timer/
event counter 2
Watchdog timer
Watch timer
Serial
interface 0
Serial
interface 1
A/D converter
Interrupt control
Clock output
control
Buzzer output
TO0/P30
TI0/P00
TO1/P31
TI1/P33
TO2/P32
TI2/P34
SI0/SB0/P25
SO0/SB1/P26
SCK0/P27
SI1/P20
SO1/P21
SCK1/P22
STB/P23
BUSY/P24
ANI0/P10 to
ANI7/P17
AV
DD
AV
SS
AV
REF
INTP0/P00 to
INTP3/P03
BUZ/P36
PCL/P35
78K/0
CPU core
ROM
RAM
V
DD
V
SS
IC
(V
PP
)
Port 0
Port 1
Port 2
Port 3
Port 7
Port 8
Port 9
Port 10
Port 11
Port 12
VFD
controller/
driver
System
control
P01 to P03
P00
P04
P10 to P17
P20 to P27
P30 to P37
P70 to P74
P80 to P87
P90 to P97
P100 to P107
P110 to P117
P120 to P127
FIP0 to FIP52
V
LOAD
RESET
X1
X2
XT1/P04
XT2