M30262F8GP#U5 Renesas Electronics America, M30262F8GP#U5 Datasheet - Page 63
![IC M16C/TINY MCU FLASH 48LQFP](/photos/28/61/286102/48-lqfp__plqp0048kb-a_sml.jpg)
M30262F8GP#U5
Manufacturer Part Number
M30262F8GP#U5
Description
IC M16C/TINY MCU FLASH 48LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/Tiny/26r
Datasheets
1.M30622SAFPU5.pdf
(308 pages)
2.M30262F4GPU3.pdf
(41 pages)
3.M30262F4GPU3.pdf
(241 pages)
Specifications of M30262F8GP#U5
Core Processor
M16C/60
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, IEBus, SIO, UART/USART
Peripherals
DMA, WDT
Number Of I /o
38
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M30262F8GP#U5M30262F8GP#D3
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
M30262F8GP#U5M30262F8GP#D5
Manufacturer:
Renesas Electronics America
Quantity:
10 000
Part Number:
M30262F8GP#U5M30262F8GP#U3
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 63 of 241
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Interrupts
Saving Registers
Figure 1.9.6. State of stack before and after acceptance of interrupt request
In the interrupt sequence, only the contents of the flag register (FLG) and that of the program counter
(PC) are saved in the stack area.
First, the processor saves the four higher-order bits of the program counter, and 4 upper-order bits and 8
lower-order bits of the FLG register, 16 bits in total, in the stack area, then saves 16 lower-order bits of the
program counter. Figure 1.9.6 shows the state of the stack as it was before the acceptance of the
interrupt request, and the state the stack after the acceptance of the interrupt request.
To save other necessary registers, use the PUSHM instruction to save these registers except the stack
pointer (SP)at the beginning of the interrupt routine.
Address
m - 3
m - 2
m - 1
m - 4
m + 1
Stack status before interrupt request
is acknowledged
m
MSB
Preliminary Specifications Rev. 0.9
Specifications in this manual are tentative and subject to change.
Content of previous stack
Content of previous stack
Stack area
LSB
Renesas Technology Corp.
[SP]
Stack pointer
value before
interrupt occurs
Address
m - 4
m - 3
m - 2
m - 1
m
m + 1
Stack status after interrupt request
is acknowledged
MSB
Flag register
Content of previous stack
Content of previous stack
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Program counter (PC
Program counter (PC
(FLG
Flag register (FLG
Stack area
H
)
counter (PC
Program
L
)
L
M
)
)
H
LSB
)
M16C/26 Group
[SP]
New stack
pointer value
55
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