TMP91xy40FG Toshiba, TMP91xy40FG Datasheet - Page 20

• Manufacturer Part Number: TMP91xy40FG
• Manufacturer: Toshiba

Specifications of TMP91xy40FG

• Package: LQFP100
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): M/F
• Rom Combinations: 128
• Ram Combinations: 4
• Architecture: 16-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 4
• I2c/sio Bus Channels: -
• (s)dram Controller: -
• Adc 10-bit Channel: 4
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: 3
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: -
• Dual Clock: Y
• Number Of I/o Ports: 61
• Power Supply Voltage(v): 2.2 to 3.6

(2) Reducing drive capability of the low-frequency oscillator
(3) Canceling double-drive operation of the high-frequency oscillator
Purpose:
consumption of the low-frequency oscillator when an external resonator is connected.
Block diagram:
Description:
oscillator’s drive capability. A system reset initializes the <DRVOSCL> bit to 1.
Purpose:
Block diagram:
Description:
oscillator to stop oscillation with the X2 pin driven high.
Note: Do not write EMCCR0<EXTIN> = “1” when using external resonator.
external oscillator is used, with double-drive operation not required.
To suppress noise generated by the low-frequency oscillator and to reduce power
Setting the <DRVOSCL> bit of the EMCCR0 register to 0 reduces the low-frequency
To prevent malfunction due to noise coming through the X2 pin that is open when an
Setting the <EXTIN> bit of the EMCCR0 register to 1 causes the high-frequency
A system reset initializes the <EXTIN> bit to 0.
Resonator
C1
C2
XT2 pin
X1 pin
X2 pin
XT1 pin
91CW40-18
EMCCR0<DRVOSCL>
EMCCR0<EXTIN>
Enable oscillation
Enable oscillation (STOP+EMCCR0<EXTIN>)
fs
fc
TMP91CW40
2008-09-19