HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 60

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Rev. 1.00, 02/04, page 22 of 804
Classification
Power supply
Clock
Operating mode
control
Symbol
REG_PD_VREF Input/NC Power supply
Vcc (PLL)
V
Vss (PLL)
EXTAL
XTAL
CKIO
MD5,
MD2,
MD1
DD
(PLL)*
1
I/O
Input
Output/
Input
Input
Input
Output
I/O
Input
Name
control
PLL1/PLL2
power supply
Power supply
PLL1/PLL2
ground
(clock input)
Crystal output
Clock I/O
Mode control
Crystal input
Supplies system clocks to external
Function
Built-in regulator control. This pin
should be fixed to high when the
external power supply is used for
the internal power (V
This pin should be open when the
built-in power supply regulator is
used.
Power supply for on-chip
PLL1/PLL2 oscillator
Power output of the built-in
regulator for PLL1/PLL2 oscillator,
or power input from an external
power supply. A pin function is
specified with the TEST_REG pin.
Ground pin for on-chip PLL1/PLL2
oscillator
For connection to the crystal
resonator. Also, this pin can input
external clocks.
For connection to the crystal
resonator and connection of the
input of external clocks, refer to
section 11, Clock Pulse Generator
(CPG).
For connection to the crystal
resonator.
For connection to the crystal
resonator and connection of the
input of external clocks, refer to
section 11, Clock Pulse Generator
(CPG).
devices or used for external clock
input.
Sets the operating mode. The level
on these pins should not be
changed during operation.
MD2 and MD1 set the clock mode
and MD5 sets the endian.
DD
=1.5V).