HD6473032F Datasheet, PDF (25/572 Pages) Hitachi Semiconductor – Hitachi Microcomputer

1.4 Pin Functions
Table 1-3 summarizes the pin functions.
Table 1-3 Pin Functions
Type
Power
Clock
Symbol
V_CC
V_SS
XTAL
EXTAL
ø
Operating
MD₁,
mode control MD₀
Pin No. I/O Name and Function
21, 53
Input
Power: For connection to the power supply
(+5 V). Connect all V_CC pins to the +5-V system
power supply.
12, 30, 50 Input
Ground: For connection to ground (0 V).
Connect all V_SS pins to the 0-V system power
supply.
52
Input For connection to a crystal resonator.
For examples of crystal resonator and external
clock input, see section 15, Clock Pulse
Generator.
51
Input For connection to a crystal resonator or input of
an external clock signal. For examples of
crystal resonator and external clock input, see
section 15, Clock Pulse Generator.
46
Output System clock: Supplies the system clock to
external devices
45, 44
Input Mode 1 and mode 0: For setting the operating
mode, as follows
MD₁
0
MD₀
0
Operating Mode
—
0
1
Mode 1
01
0
Mode 2
1
1
Mode 3
System control RES
48
RESO
57
STBY
47
Input Reset input: When driven low, this pin resets
the H8/3032
Output Reset output: Outputs a reset signal to
external devices
Input Standby: When driven low, this pin forces
a transition to hardware standby mode
10