M306N5FCTFP Renesas Electronics America, M306N5FCTFP Datasheet - Page 24

• Manufacturer Part Number: M306N5FCTFP
• Description: IC M16C MCU FLASH 100QFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/6Nr

Specifications of M306N5FCTFP

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 87
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 26x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

1.4 Flag Register (FLG)
Chapter 1 Overview
Figure 1.4.1 shows a configuration of the flag register (FLG). The function of each flag is detailed below.
1.4.1 Bit 0: Carry flag (C flag)
1.4.2 Bit 1: Debug flag (D flag)
1.4.3 Bit 2: Zero flag (Z flag)
1.4.4 Bit 3: Sign flag (S flag)
1.4.5 Bit 4: Register bank select flag (B flag)
1.4.6 Bit 5: Overflow flag (O flag)
1.4.7 Bit 6: Interrupt enable flag (I flag)
1.4.8 Bit 7: Stack pointer select flag (U flag)
1.4.9 Bits 8-11: Reserved area
This flag holds a carry, borrow, or shifted-out bit that has occurred in the arithmetic/logic unit.
This flag enables a single-step interrupt.
When this flag is set (= 1), a single-step interrupt is generated after an instruction is executed. When an
interrupt is acknowledged, this flag is cleared to 0.
This flag is set when an arithmetic operation resulted in 0; otherwise, this flag is 0.
This flag is set when an arithmetic operation resulted in a negative value; otherwise, this flag is 0.
This flag selects a register bank. If this flag is 0, register bank 0 is selected; if the flag is 1, register bank
1 is selected.
This flag is set when an arithmetic operation resulted in overflow.
This flag enables a maskable interrupt.
When this flag is 0, the interrupt is disabled; when the flag is 1, the interrupt is enabled. When the
interrupt is acknowledged, this flag is cleared to 0.
When this flag is 0, the interrupt stack pointer (ISP) is selected; when the flag is 1, the user stack pointer
(USP) is selected.
This flag is cleared to 0 when a hardware interrupt is acknowledged or an INT instruction of software
interrupt numbers 0 to 31 is executed.
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1.4 Flag Register (FLG)