UPD78F1203MC-CAB-AX Renesas Electronics America, UPD78F1203MC-CAB-AX Datasheet - Page 868

• Manufacturer Part Number: UPD78F1203MC-CAB-AX
• Description: MCU 16BIT 78K0R/LX3 30-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Ix3r

Specifications of UPD78F1203MC-CAB-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

17.1 Interrupt Function Types
(1) Maskable interrupts
(2) Software interrupt
17.2 Interrupt Sources and Configuration
866
Maskable
interrupts
The number of interrupt sources differs, depending on the product.
The following two types of interrupt functions are used.
These interrupts undergo mask control. Maskable interrupts can be divided into four priority groups by setting the
priority specification flag registers (PR00L, PR00H, PR01L, PR01H, PR02L, PR02H, PR10L, PR10H, PR11L,
PR11H, PR12L, PR12H).
Multiple interrupt servicing can be applied to low-priority interrupts when high-priority interrupts are generated. If
two or more interrupt requests, each having the same priority, are simultaneously generated, then they are
processed according to the priority of vectored interrupt servicing. For the priority order, see Table 17-1.
A standby release signal is generated and STOP and HALT modes are released.
External interrupt requests and internal interrupt requests are provided as maskable interrupts.
This is a vectored interrupt generated by executing the BRK instruction. It is acknowledged even when interrupts
are disabled. The software interrupt does not undergo interrupt priority control.
The 78K0R/IE3 has a interrupt sources including maskable interrupts and software interrupts. In addition, they
also have up to five reset sources (see Table 17-1). The vector codes that store the program start address when
branching due to the generation of a reset or various interrupt requests are two bytes each, so interrupts jump to
a 64 K address of 00000H to 0FFFFH.
Internal
External
78K0R/IB3
31
6
CHAPTER 17 INTERRUPT FUNCTIONS
78K0R/IC3
(38-pin)
User’s Manual U19678EJ1V1UD
33
8
78K0R/IC3
(44-pin)
33
8
78K0R/IC3
(48-pin)
34
8
78K0R/ID3
34
8
78K0R/IE3
34
8