TMP91xy20AFG Toshiba, TMP91xy20AFG Datasheet - Page 234

• 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

3.13.6
Note: This set up time is unnecessary when you use only internal interruption.
Explanation of the Alarm Function
from
when the falling edge is detected. RTC is not initializes by RESET. Therefore, when clock or
alarm function is used, clear interrupt request flag in INTC (interrupt controller).
(1) In accordance of alarm register and the clock, output “0”.
(2) Output clock of 1Hz.
(3) Output clock of 16Hz.
(1) In accordance with alarm register and a clock, output “0”
Can use alarm function by setting of register of PAGE1 and output either of three signal
of PAGER<ENAALM>= “1”, output “0” to
of all alarm becomes don’t care. In this case, always accorded with value of a clock and
request INTRTC interrupt if PAGER<ENAALM> is “1”.
writing in data at each register of PAGE1.
PAGER<INTENA><ENAALM> is “1”. However, contents (don't care state) which does
not set it up is considered to always accord.
independence. Initialization of alarm and resetting of alarm register set to “Don’t care”.
(PM12:00) every day.
clock at 32 kHz (about 30µs) for the time register setting to become valid. In the above
example, it is necessary to set 31µs of set up time between setting the time register and
enabling the alarm register.
ALARM
When value of a clock of PAGE0 accorded with alarm register of PAGE1 with a state
Follows are ways using alarm.
Initialization of alarm is done by writing in “1” at RESTR<RSTALM>, setting value
Setting alarm min., alarm hour, alarm day and alarm the day week are done by
When all setting contents accorded, RTC generates INTRTC interrupt, if
The contents, which set it up once, cannot be returned to don't care state in
The following is an example program for outputting alarm from
When CPU is operated by high frequency oscillation, it may take a maximum of one
( LD
LD
LD
LD
LD
LD
LD
LD
pin as follows by write “1” to PAGER<PAGE>. INTRTC outputs 1shot pulse
(PAGER), 09H
(RESTR), D0H
(DAYR), 01H
(DATAR),01H
(HOURR), 12H
(MINR), 00H
(PAGER), 0CH
(PAGER), 8CH
91C820A-232
;
;
;
;
;
;
;
;
Alarm disable, setting PAGE1
Alarm initialize
W0
1 day
Setting 12 o’clock
Setting 00 min
Set up time 31 µs (Note)
Alarm enable
Interrupt enable )
ALARM
pin and occur INTRTC.
ALARM
TMP91C820A
2008-02-20
-pin at noon