UPD78F1146AGK-GAJ-AX Renesas Electronics America, UPD78F1146AGK-GAJ-AX Datasheet - Page 280
UPD78F1146AGK-GAJ-AX
Manufacturer Part Number
UPD78F1146AGK-GAJ-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 UPD78F1146AGK-GAJ-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
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
12K 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
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F1146AGK-GAJ-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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7.4 Real-Time Counter Operation
7.4.1 Starting operation of real-time counter
278
Notes 1.
2.
3.
First set RTCEN to 1, while oscillation of the subsystem clock (f
Set up SUBCUD only if the watch error must be corrected. For details about how to calculate the
correction value, see 7.4.8 Example of watch error correction of real-time counter.
Confirm the procedure described in 7.4.2 Shifting to STOP mode after starting operation when
shifting to STOP mode without waiting for INTRTC = 1 after RTCE = 1.
Figure 7-19. Procedure for Starting Operation of Real-Time Counter
No
Setting SEC (clearing RSUBC)
Clearing MK flags of interrupt
Clearing IF flags of interrupt
Setting AMPM, CT2 to CT0
Setting SUBCUD
Reading counter
RTCEN = 1
Setting MONTH
Setting HOUR
Setting WEEK
RTCE = 1
Setting YEAR
INTRTC = 1?
Setting DAY
Setting MIN
RTCE = 0
Start
CHAPTER 7 REAL-TIME COUNTER
Yes
Note 3
Note 1
User’s Manual U17854EJ9V0UD
Note 2
Supplies input clock.
Clears interrupt mask flags (RTCMK, RTCIMK).
Stops counter operation.
Selects 12-/24-hour system and interrupt (INTRTC).
Sets second count register.
Sets minute count register.
Sets hour count register.
Sets week count register.
Sets day count register.
Sets month count register.
Sets year count register.
Sets watch error correction register.
Clears interrupt request flags (RTCIF, RTCIIF).
Starts counter operation.
SUB
) is stable.
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