TMP91xy25FG Toshiba, TMP91xy25FG Datasheet - Page 180

• Manufacturer Part Number: TMP91xy25FG
• Manufacturer: Toshiba

Specifications of TMP91xy25FG

• Package: LQFP100
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): Romless
• Rom Combinations: Romless
• Ram Combinations: Ramless
• Architecture: 16-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 2
• I2c/sio Bus Channels: -
• (s)dram Controller: -
• Adc 10-bit Channel: 4
• Da Converter: -
• Timer 8-bit Channel: 4
• Timer 16-bit Channel: -
• Pwm 8-bit Channels: -
• Pwm 16-bit Channels: -
• Cs/wait Controller: 4
• Dual Clock: Y
• Number Of I/o Ports: 49
• Power Supply Voltage(v): 3.0 to 3.6

3.13 Real Time Clock (RTC)
Note 1: The Christian era year column:
Note 2: Leap year:
3.13.1
3.13.2
This product has year column toward only lower two columns. Therefore the next year in 99 works
as 00 years. In system to use it, please manage upper two columns with the system side when
handle year column in the christian era.
A leap year is the year which is divisible with 4, but the year which there is exception, and is divisible
with 100 is not a leap year. However, the year which is divisible with 400 is a leap year. But there is
not this product for the correspondence to the above exception. Because there are only with the
year which is divisible with 4 as a leap year, please cope with the system side if this function is
problem.
32 kHz
Clock: fs
1) Clock function (hour, minute, second)
2) Calendar function (month and day, day of the week, and leap year)
3) 24- or 12-hour (AM/PM) clock function
4) ± 30 second adjustment function (by software)
5) Alarm function (Alarm output
6) Alarm interrupt generate
Function Description for RTC
Block Diagram
RD
Adjust
Carry hold
(1 s)
WR
Address
Bus
Divider
Read/Write control
Figure 3.13.1 Block Diagram
D0 to D7
91C025-179
Comparator
Clock
Alarm register
16 Hz clock
1 Hz clock
Address
Internal Data bus
ALARM
Alarm
select
TMP91C025
2007-02-28
INTRTC
ALARM