TMP91xy25FG Toshiba, TMP91xy25FG Datasheet - Page 28

• Manufacturer Part Number: TMP91xy25FG
• Manufacturer: Toshiba

Specifications of TMP91xy25FG

• Package: LQFP100
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): Romless
• Rom Combinations: Romless
• Ram Combinations: Ramless
• Architecture: 16-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 2
• I2c/sio Bus Channels: -
• (s)dram Controller: -
• Adc 10-bit Channel: 4
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: -
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: 4
• Dual Clock: Y
• Number Of I/o Ports: 49
• Power Supply Voltage(v): 3.0 to 3.6

3.3.6
Noise Reduction Circuits
(1) Reduced drivability for high-frequency oscillator
Noise reduction circuits are built in, allowing implementation of the following features.
(1) Reduced drivability for high-frequency oscillator
(2) Reduced drivability for low-frequency oscillator
(3) Single drive for high-frequency oscillator
(4) SFR protection of register contents
(5) ROM protection of register contents
The above functions are performed by making the appropriate settings in the EMCCR0
to EMCCR3 registers.
(Purpose)
(Block diagram)
(Setting method)
register. By reset, <DRVOSCH> is initialized to 1 and the oscillator starts
oscillation by normal-drivability when the power-supply is on.
Resonator
Reduces noise and power for oscillator when a resonator is used.
The drivability of the oscillator is reduced by writing 0 to EMCCR0<DRVOSCH>
C1
C2
X1 pin
X2 pin
91C025-26
Enable oscillation
EMCCR0<DRVOSCH>
f
OSCH
(
STOP
+
EMCCR
0
<
TMP91C025
EXTIN
2007-02-28
>
)