UPD78F1142AGB-GAH-AX Renesas Electronics America, UPD78F1142AGB-GAH-AX Datasheet - Page 272
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UPD78F1142AGB-GAH-AX
Manufacturer Part Number
UPD78F1142AGB-GAH-AX
Description
MCU 16BIT 78K0R/KX3 64-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3r
Datasheet
1.UPD78F1142AGA-HAB-AX.pdf
(880 pages)
Specifications of UPD78F1142AGB-GAH-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
50
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F1142AGB-GAH-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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270
Address: FFF93H
Address: FFF94H
(7) Minute count register (MIN)
(8) Hour count register (HOUR)
Symbol
Symbol
HOUR
MIN
The MIN register is an 8-bit register that takes a value of 0 to 59 (decimal) and indicates the count value of
minutes.
It counts up when the second counter overflows.
When data is written to this register, it is written to a buffer and then to the counter up to 2 clocks (32.768 kHz)
later. Even if the second count register overflows while this register is being written, this register ignores the
overflow and is set to the value written. Set a decimal value of 00 to 59 to this register in BCD code. If a value
outside the range is set, the register value returns to the normal value after 1 period.
MIN can be set by an 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
The HOUR register is an 8-bit register that takes a value of 00 to 23 or 01 to 12, 21 to 32 (decimal) and
indicates the count value of hours.
It counts up when the minute counter overflows.
When data is written to this register, it is written to a buffer and then to the counter up to 2 clocks (32.768 kHz)
later. Even if the minute count register overflows while this register is being written, this register ignores the
overflow and is set to the value written. Specify a decimal value of 00 to 23, 01 to 12, or 21 to 32 by using BCD
code according to the time system specified using bit 3 (AMPM) of real-time counter control register 0
(RTCC0).
If the AMPM bit value is changed, the values of the HOUR register change according to the specified time
system.
If a value outside the range is set, the register value returns to the normal value after 1 period.
HOUR can be set by an 8-bit memory manipulation instruction.
Reset signal generation clears this register to 12H.
However, the value of this register is 00H if the AMPM bit is set to 1 after reset.
Caution Bit 5 (HOUR20) of HOUR indicates AM(0)/PM(1) if AMPM = 0 (if the 12-hour system is
selected).
7
0
7
0
After reset: 00H
After reset: 12H
MIN40
Figure 7-9. Format of Hour Count Register (HOUR)
Figure 7-8. Format of Minute Count Register (MIN)
6
6
0
R/W
R/W
CHAPTER 7 REAL-TIME COUNTER
HOUR20
MIN20
5
5
User’s Manual U17854EJ9V0UD
HOUR10
MIN10
4
4
HOUR8
MIN8
3
3
HOUR4
MIN4
2
2
HOUR2
MIN2
1
1
HOUR1
MIN1
0
0
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