SH7055S Datasheet, PDF (49/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Table 1.2 Pin Functions (cont)
Type
Clock
Symbol
PLLV_CC
Pin No.
60
PLLV_SS
62
PLLCAP 61
EXTAL
51
XTAL
53
CK
48
System control RES
58
WDTOVF 124
BREQ
46
BACK
45
I/O
Name
Function
Input PLL power
supply
On-chip PLL oscillator power
supply.
For power supply connection,
see section 5, Clock Pulse
Generator (CPG).
Input PLL ground On-chip PLL oscillator ground.
For power supply connection,
see section 5, Clock Pulse
Generator (CPG).
Input PLL
capacitance
On-chip PLL oscillator
external capacitance
connection pin.
For external capacitance
connection, see section 5,
Clock Pulse Generator (CPG).
Input
External clock
For connection to a crystal
resonator. An external clock
source can also be connected
to the EXTAL pin.
Input Crystal
For connection to a crystal
resonator.
Output System clock Supplies the system clock to
peripheral devices.
Input Power-on
reset
Executes a power-on reset
when driven low.
Output Watchdog
WDT overflow output signal.
timer overflow
Input Bus request
Driven low when an external
device requests the bus.
Output Bus request
acknowledge
Indicates that the bus has
been granted to an external
device. The device that output
the BREQ signal recognizes
that the bus has been
acquired when it receives the
BACK signal.
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