UPD78F1001GB-GAF-AX Renesas Electronics America, UPD78F1001GB-GAF-AX Datasheet - Page 498
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UPD78F1001GB-GAF-AX
Manufacturer Part Number
UPD78F1001GB-GAF-AX
Description
MCU 16BIT 78K0R/KX3-L 44-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3-Lr
Datasheet
1.UPD78F1000GB-GAF-AX.pdf
(1171 pages)
Specifications of UPD78F1001GB-GAF-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
33
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 10x10b
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:
UPD78F1001GB-GAF-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 498 of 1171
- Download datasheet (8Mb)
78K0R/Kx3-L
R01UH0106EJ0300 Rev.3.00
Oct 01, 2010
Caution If writing is performed to the RTCC1 register with a 1-bit manipulation instruction, the RIFG flag
Remark Fixed-cycle interrupts and alarm match interrupts use the same interrupt source (INTRTC). When using
This flag indicates the status of generation of the constant-period interrupt. When the constant-period interrupt is
generated, it is set to “1”.
This flag is cleared when “0” is written to it. Writing “1” to it is invalid.
This status flag indicates whether the setting of the RWAIT bit is valid.
Before reading or writing the counter value, confirm that the value of this flag is 1.
This bit controls the operation of the counter.
Be sure to write “1” to it to read or write the counter value.
Because the sub-count register (RSUBC) continues operation, complete reading or writing of it in 1 second, and
clear this bit back to 0.
When RWAIT = 1, it takes up to 1 clock (32.768 kHz) until the counter value can be read or written.
If the RSUBC register overflows when RWAIT = 1, the counter counts up after RWAIT = 0. If the second count
register is written, however, the RSUBC register is cleared.
RWAIT
RWST
RIFG
and WAFG flag may be cleared. Therefore, to perform writing to the RTCC1 register, be sure to
use an 8-bit manipulation instruction. To prevent the RIFG flag and WAFG flag from being
cleared during writing, disable writing by setting 1 to the corresponding bit. If the RIFG flag and
WAFG flag are not used and the value may be changed, the RTCC1 register may be written by
using a 1-bit manipulation instruction.
these two types of interrupts at the same time, which interrupt occurred can be judged by checking the
fixed-cycle interrupt status flag (RIFG) and the alarm detection status flag (WAFG) upon INTRTC
occurrence.
0
1
0
1
0
1
Figure 9-4. Format of Real-Time Counter Control Register 1 (RTCC1) (2/2)
Constant-period interrupt is not generated.
Constant-period interrupt is generated.
Counter is operating.
Mode to read or write counter value
Sets counter operation.
Stops SEC to YEAR counters. Mode to read or write counter value
Constant-period interrupt status flag
Wait status flag of real-time counter
Wait control of real-time counter
CHAPTER 9 REAL-TIME COUNTER
498
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