UPD78F0550MA-FAA-AX Renesas Electronics America, UPD78F0550MA-FAA-AX Datasheet - Page 583
UPD78F0550MA-FAA-AX
Manufacturer Part Number
UPD78F0550MA-FAA-AX
Description
MCU 8BIT 16-SSOP
Manufacturer
Renesas Electronics America
Series
78K0/Kx2-Lr
Datasheet
1.UPD78F0550MA-FAA-AX.pdf
(734 pages)
Specifications of UPD78F0550MA-FAA-AX
Package / Case
*
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Speed
10MHz
Number Of I /o
12
Core Processor
78K/0
Program Memory Type
FLASH
Ram Size
384 x 8
Program Memory Size
4KB (4K x 8)
Data Converters
A/D 4x10b
Oscillator Type
Internal
Peripherals
LVD, POR, PWM, WDT
Connectivity
I²C, LIN, UART/USART
Core Size
8-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F0550MA-FAA-AX
Manufacturer:
Renesas
Quantity:
800
Part Number:
UPD78F0550MA-FAA-AX
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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17.4.2 Software interrupt request acknowledgment
disabled.
status word (PSW), then program counter (PC), the IE flag is reset (0), and the contents of the vector table (003EH,
003FH) are loaded into the PC and branched.
CPU processing
CPU processing
Remark 1 clock: 1/f
Remark 1 clock: 1/f
A software interrupt acknowledge is acknowledged by BRK instruction execution. Software interrupts cannot be
If a software interrupt request is acknowledged, the contents are saved into the stacks in the order of the program
Restoring from a software interrupt is possible by using the RETB instruction.
Caution Do not use the RETI instruction for restoring from the software interrupt.
(
(
(
(
PR = 1)
PR = 0)
PR = 1)
PR = 0)
IF
IF
IF
IF
Figure 17-21. Interrupt Request Acknowledgment Timing (Maximum Time)
Figure 17-20. Interrupt Request Acknowledgment Timing (Minimum Time)
CPU
CPU
(f
(f
Instruction
Instruction
CPU
CPU
: CPU clock)
: CPU clock)
CHAPTER 17 INTERRUPT FUNCTIONS
Preliminary User’s Manual U19111EJ2V1UD
Divide instruction
Instruction
25 clocks
33 clocks
32 clocks
8 clocks
PSW and PC saved,
jump to interrupt
servicing
PSW and PC saved,
jump to interrupt
servicing
7 clocks
6 clocks
6 clocks
Interrupt servicing
program
Interrupt servicing
program
583
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