TMP92xy21FG Toshiba, TMP92xy21FG Datasheet - Page 320

• Manufacturer Part Number: TMP92xy21FG
• Manufacturer: Toshiba

Specifications of TMP92xy21FG

• Package: LQFP144
• Rom Types(m=mask,p=otp, F=flash,e=eeprom): Romless
• Rom Combinations: Romless
• Ram Combinations: 16
• Architecture: 32-bit CISC
• Usb/spi Channels: -
• Uart/sio Channels: 2
• I2c/sio Bus Channels: -
• (s)dram Controller: 1
• Adc 10-bit Channel: 4
• 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: 82
• Power Supply Voltage(v): 3.0 to 3.6

3.13 Real Time Clock (RTC)
3.13.1
3.13.2
Note 1: Western calendar year column:
Note 2: Leap year:
32-kHz
clock
Function Description for RTC
1)
2)
3)
4)
5)
6)
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.
Clock function (hour, minute, second)
Calendar function (month and day, day of the week, and leap year)
24- or 12-hour (AM/PM) clock function
+/−30 s adjustment function (by software)
Alarm function (alarm output)
Alarm interrupt generate
Adjust
hold (1s)
Carry
RD
WR
Divider
Read/write control
D0 to D7
Figure 3.13.1 RTC Block Diagram
Comparator
Clock
Alarm register
1-Hz clock
92CH21-318
Address
Data bus
16-Hz clock
ALARM
select
Alarm
INTRTC
ALARM
TMP92CH21
2009-06-19