Pin Functions - Hitachi H8S/2215 Series Hardware Manual

1.5

Pin Functions

Type Symbol
Power Supply VCC
VSS
PLLVCC
PLLVSS
PLLCAP
Clock XTAL
EXTAL
XTAL48
EXTAL48
φ
Operating MD2
Mode Control
MD1
MD0
Rev. 3.0, 10/02, page 10 of 686
Pin No.
TFP-120 BP-112
10 E4
75 F11
12 E1
61
G10
73
64 H8
62 K10
63 K11
74 F9
76 F10
65 J10
66 J11
78 E11
77 F8
68 H10
67 H9
I/O Function
Input Power supply pins. Connect all these
pins to the system power supply.
Input Ground pins. Connect all these pins
to the system power supply (0 V).
Input Power supply pin for internal PLL
oscillator. Connect this pin to the
system power supply.
Input Ground pin for an on-chip PLL
oscillator.
Output External capacitor pin for an on-chip
PLL oscillator.
Input For connection to a crystal resonator.
For examples of crystal resonator
connection and external clock input,
see section 21, Clock Pulse
Generator.
Input For connection to a crystal resonator.
(An external clock can be supplied
from the EXTAL pin.) For examples
of crystal resonator connection and
external clock input, see section 21,
Clock Pulse Generator.
Input USB operating clock input pins.
Input 48-MHz clock for USB
communications is input. For
examples of using an on-chip PLL,
EXTAL48 must be fixed low and
XTAL48 must be open.
Output Supplies the system clock to external
devices.
Input Set the operating mode. Inputs at
these pins cannot be modified during
operation.