TMP91xy20AFG Toshiba, TMP91xy20AFG Datasheet - Page 277

• Manufacturer Part Number: TMP91xy20AFG
• Manufacturer: Toshiba

Specifications of TMP91xy20AFG

• Package: LQFP144
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): M
• Rom Combinations: 8
• Ram Combinations: 8
• Architecture: 16-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 1
• I2c/sio Bus Channels: 1
• (s)dram Controller: 1
• Adc 10-bit Channel: 8
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: 1
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: 4
• Dual Clock: Y
• Number Of I/o Ports: 77
• Power Supply Voltage(v): 3.0 to 3.6

3.15.3.2 Alarm Generator
frequency 4096 Hz determined by the low-speed clock (32.768 kHz). And this
waveform is reversible by setting a value to a register.
generated by using a counter which is used for alarm generator.
The alarm function generates eight kinds of alarm waveform having a modulation
By connecting a loud speaker outside, alarm tone can easily sound.
Five kind of fixed cycles (1 Hz, 2 Hz, 64 Hz, 512 Hz, 8 kHz) INTERRUPT be
(Operation)
(Setting value of alarm pattern)
(Example program)
waveform as output waveform from MLDALM. Then 10 be set on
MELALMC<FC1:0> register, and clear internal counter. Finally alarm pattern
has to be set on 8-bit register of ALM. If it is inverted output-data, set <ALMINV>
as invert.
of each setting value.
At first, MELALMC<MELALM> have to be set as 0 in order to select alarm
Followings are example program, setting value of alarm pattern and waveform
In case of outputting AL2 pattern (31.25 ms/8 times/1 s)
Setting Value
Register
LD
LD
for ALM
Other
00H
01H
02H
04H
08H
10H
20H
40H
80H
(MELALMC), C0H
(ALM), 02H
Alarm Waveform
91C820A-275
(Do not set.)
AL1 pattern
AL2 pattern
AL3 pattern
AL4 pattern
AL5 pattern
AL7 pattern
AL8 pattern
AL6pattern
Undefined
0 fixed
; Set output alarm waveform
; Set AL2 pattern, start
; Free-run counter start
TMP91C820A
2008-02-20