TMP91xy40FG Toshiba, TMP91xy40FG Datasheet - Page 147

• 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

3.12 Real time clock (RTC)
3.12.1
3.12.2
32 kHz
Note 1: Western calendar year column:
Note 2: Leap year:
Clock
Function description for RTC
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
Block diagram
This product uses only the final two digits of the year. Therefore, the year following 99 is 00 years. In use,
please take into account the first two digits when handling years in the western calendar.
A leap year is divisible by 4, but the exception is any leap year which is divisible by 100; this is not considered
a leap year. However, any year which is divisible by 400, is a leap year. This product does not take into
account the above exceptions . Since this product accounts only for leap years divisible by 4, please adjust the
system for any problems.
Carry hold
Adjust
(1s)
RD
WR
Address
Bus
Divider
R/W Control
D0~D7
Figure 3.12.1 RTC block diagram
Comparator
Clock
Alarm Register
91CW40-145
1 Hz Clock
Address
16 Hz Clock
Internal data bus
ALARM
Selector
Alarm
INTRTC
ALARM
TMP91CW40
2008-09-19