UPD78F1506GF-GAT-AX Renesas Electronics America, UPD78F1506GF-GAT-AX Datasheet - Page 859

• Manufacturer Part Number: UPD78F1506GF-GAT-AX
• Description: MCU 16BIT 78K0R/LX3 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Lx3r

Specifications of UPD78F1506GF-GAT-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 78
• 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 12x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0R/Lx3
29.1 BCD Correction Circuit Function
code with this circuit.
operand and then adding/ subtracting the BCDADJ register.
29.2 Registers Used by BCD Correction Circuit
R01UH0004EJ0401 Rev.4.01
Jul 2, 2010
Address: F00FEH
BCDADJ
The BCD correction circuit is mounted onto all 78K0R/Lx3 microcontroller products.
The result of addition/subtraction of the BCD (binary-coded decimal) code and BCD code can be obtained as BCD
The decimal correction operation result is obtained by performing addition/subtraction having the A register as the
The BCD correction circuit uses the following registers.
• BCD correction result register (BCDADJ)
(1) BCD correction result register (BCDADJ)
Symbol
The BCDADJ register stores correction values for obtaining the add/subtract result as BCD code through
add/subtract instructions using the A register as the operand.
The value read from the BCDADJ register varies depending on the value of the A register when it is read and those
of the CY and AC flags.
BCDADJ is read by an 8-bit memory manipulation instruction.
Reset input sets this register to undefined.
7
After reset: undefined
Figure 29-1. Format of BCD Correction Result Register (BCDADJ)
6
CHAPTER 29 BCD CORRECTION CIRCUIT
R
5
4
CHAPTER 29 BCD CORRECTION CIRCUIT
3
2
1
0
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