TMP91xy20AFG Toshiba, TMP91xy20AFG Datasheet - Page 221

• 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 Real Time Clock (RTC)
3.13.1
3.13.2
32 kHz
Clock: fs
Function Description for RTC
1)
2)
3)
4)
5)
6)
Block Diagram
Note 1: The Christian era year column:
Note 2: Leap year:
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 second adjustment function (by software)
Alarm output 1Hz/16Hz (from
Interrupt generate by Alarm output 1Hz/16Hz
RD
Adjust
Carry hold
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 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.
(1 s)
WR
Address
Bus
Figure 3.13.1 RTC Block Diagram
Divider
Read/Write control
D0 to D7
91C820A-219
Comparator
Clock
ALARM
Alarm register
16 Hz clock
pin)
1 Hz clock
Address
Data bus
ALARM
Alarm
select
TMP91C820A
2008-02-20
INTRTC
ALARM