UPD70F3765GF-GAT-AX Renesas Electronics America, UPD70F3765GF-GAT-AX Datasheet - Page 650

• Manufacturer Part Number: UPD70F3765GF-GAT-AX
• Description: MCU 32BIT V850ES/JX3-H 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Hr

Specifications of UPD70F3765GF-GAT-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 48MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART, USB
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

V850ES/JG3-H, V850ES/JH3-H
R01UH0042EJ0400 Rev.4.00
Sep 30, 2010
(13) Watch error correction register (RC1SUBU)
The RC1SUBU register (8-bit) can be used to correct the watch with high accuracy when the watch is early or late,
by changing the value (reference value: 7FFFH) overflowing from the sub-count register (RSUBC) to the second
counter register.
This register can be read or written in 8-bit or 1-bit units.
Reset sets this register to 00H.
Remarks 1. The RC1SUBU register can be rewritten only when the real-time counter is set to its initial values.
RC1SUBU
2. See 12.4.9 Watch error correction example of real-time counter for details of watch error
After reset: 00H
Be sure to see 12.4.1 Initial settings.
correction.
If the F6 to F0 bit values are {1/0, 0, 0, 0, 0, 0, 1/0}, watch error correction is not
performed.
DEV
DEV
F6
7
0
1
0
1
Corrects watch errors when RC1SEC (second counter) is at 00, 20, or
40 seconds (every 20 seconds).
Corrects watch errors when RC1SEC (second counter) is at 00 seconds
(every 60 seconds).
Increments the RC1SUBC count value by the value set using the F5 to
F0 bits (positive correction).
Expression for calculating increment value:
Decrements the RC1SUBC count value by the value set using the F5 to
F0 bits (negative correction).
Expression for calculating decrement value:
R/W
F6
6
(Setting value of F5 to F0 bits − 1) × 2
(Inverted value of setting value of F5 to F0 bits + 1) × 2
Address: FFFFFAD9H
F5
5
Setting of watch error correction timing
Setting of watch error correction value
F4
4
F3
3
CHAPTER 12 REAL-TIME COUNTER
F2
2
F1
1
F0
0
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