TMP91xy40FG Toshiba, TMP91xy40FG Datasheet - Page 191
TMP91xy40FG
Manufacturer Part Number
TMP91xy40FG
Description
Manufacturer
Toshiba
Datasheet
1.TMP91XY40FG.pdf
(213 pages)
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
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3.17
3.17.1
Internal reset
Watchdog Timer (WDT)
Configuration
level of external
(f
the system in the event of software or system lockups due to spurious noise, etc. When a
watchdog timer time-out occurs, the watchdog timer generates a nonmaskable interrupt to the
CPU.
FPH
Connecting the watchdog timer output to the reset pin internally enables a forced reset. (The
The TMP91CW40 contains a watchdog timer. The watchdog timer is used to regain control of
f
SYS
Noise: Careful consideration must be given in designing a system because the watchdog timer may not be able to realize
/2)
Figure 3.17.1 shows a block diagram of the watchdog timer.
its full functionality due to external noise, etc.
WDMOD
<WDTP1:0>
RESET
22-stage binary counter
Figure 3.17.1 Watchdog Timer Block Diagram
pin is not changed.)
2
15
Watchdog timer control register
2
17
Selector
Write of
4EH
2
Internal data bus
Reset
19
91CW40-189
2
WDCR
21
Write of
B1H
WDMOD<RESCR>
R
WDMOD<WDTE>
Reset control
Q
S
Interrupt request
INTWD
Internal reset
RESET
TMP91CW40
2008-09-19
pin
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