TMP91xy40FG Toshiba, TMP91xy40FG Datasheet - Page 17

• 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

Example 1
X1, X2 pins
SYSCR1<SYSCK>
SYSCR0<XEN>
SYSCR0<XTEN>
XT1, XT2 pins
Warm-up timer
Warm-up complete
System clock f
Changing the system clock from high-frequency (fc) to low-frequency (fs)
X: Don’t care, −: No change
SYSCR0
SYSCR1
SYSCR2
WUP:
SYS
EQU
EQU
EQU
LD
SET
SET
BIT
JR
SET
RES
Enable
low-frequency
oscillator
00E0H
00E1H
00E2H
(SYSCR2), X−11− −X−B
6, (SYSCR0)
2, (SYSCR0)
2, (SYSCR0)
NZ, WUP
3, (SYSCR1)
7, (SYSCR0)
Clear & start
warm-up timer
91CW40-15
fc
Count up fs pulses
;
;
;
;
;
;
;
Set warm-up time to 2
Enable low-frequency oscillator.
Clear and start warm-up timer.
Detect completion of warming up.
Change f
Disable high-frequency oscillator.
SYS
from fc to fs.
Warm-up
complete
Change f
from fc to fs
16
/fs.
fs
SYS
Disable
high-frequency
oscillator
TMP91CW40
2008-09-19