UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 468

• Manufacturer Part Number: UPD70F3738GF-GAS-AX
• Description: MCU 32BIT V850ES/JX3-L 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3738GF-GAS-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 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: -

466
(5) Sub-count register (RC1SUBC)
(6) Second count register (RC1SEC)
The RC1SUBC register is a 16-bit register that counts the reference time of 1 second of the real-time counter.
It takes a value of 0000H to 7FFFH and counts one second with a clock of 32.768 kHz.
This register is read-only, in 16-bit units.
Reset sets this register to 0000H.
Cautions 1 When a correction is made by using the RC1SUBU register, the value may become
The RC1SEC register is an 8-bit register that takes a value of 0 to 59 (decimal) and indicates the count value
of seconds.
It counts up when the sub-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. Set a decimal value of 00 to 59 to this register in BCD code. If a value outside this range is set, the
register value returns to the normal value after one period.
This register can be read or written in 8-bit units.
Reset sets this register to 00H.
Remark
RC1SUBC
RC1SEC
See 11.4.1 Initial settings, 11.4.2 Rewriting each counter during clock operation, and 11.4.3
Reading each counter during clock operation when reading or writing the RC1SEC register.
2. This register is also cleared by writing to the second count register.
3. The value read from this register is not guaranteed if it is read during operation,
After reset: 0000H
After reset: 00H
8000H or more.
because a changing value is read.
15
CHAPTER 11 REAL-TIME COUNTER (
0
14
13
R/W
R
12
User’s Manual U18953EJ5V0UD
11
Address:
Address: FFFFFAD2H
10
9
FFFFFAD0H
8
7
PD70F3792, 70F3793)
6
5
4
3
2
1
0