tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 31

• Manufacturer Part Number: tmp19a44fda
• Description: 32bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Clock/Standby Control
ｆosc
ｆpll
ｆc
ｆs
ｆgear
ｆsys
ｆperiph
: Clock frequency to be input via the X1 and X2 pins
: High-frequency clock frequency
: Low-frequency clock frequency
: System clock frequency
(Clock to be input to the peripheral I/O prescaler)
: Clock frequency multiplied (multiplied by 8) by the PLL
: Clock frequency selected by SYSCR1<FPSEL>
: Clock frequency selected by the system control register
SYSCR1<GEAR2:0> in the clock generator
Fig. 5.2 Default State of the System Clock
TMP19A44(rev1.3) 5-2
NORMAL mode
fosc = fc = fsys
fperiph = fsys/2
External reset
PLL OFF
Reset has been perfor med.
TMP19A44
2010-04-01