D64F3437TFLH16V Renesas Electronics America, D64F3437TFLH16V Datasheet - Page 100
D64F3437TFLH16V
Manufacturer Part Number
D64F3437TFLH16V
Description
MCU 5V 60K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300r
Datasheet
1.HD64F3437STF16V.pdf
(755 pages)
Specifications of D64F3437TFLH16V
Core Processor
H8/300
Core Size
8-Bit
Speed
16MHz
Connectivity
Host Interface, I²C, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
74
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D64F3437TFLH16V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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4.2.3
After a reset, if an interrupt were to be accepted before initialization of the stack pointer (SP: R7),
the program counter and condition code register might not be saved correctly, leading to a
program crash. To prevent this, all interrupts, including NMI, are disabled immediately after a
reset. The first program instruction is therefore always executed. This instruction should initialize
the stack pointer (example: MOV.W #xx:16, SP).
After reset exception handling, in order to initialize the contents of CCR, a CCR manipulation
instruction can be executed before an instruction to initialize the stack pointer. Immediately after
execution of a CCR manipulation instruction, all interrupts including NMI are disabled. Use the
next instruction to initialize the stack pointer.
4.3
4.3.1
The interrupt sources include nine external sources from 23 input pins (NMI, IRQ
KEYIN
the interrupt sources in priority order and gives their vector addresses. When two or more
interrupts are requested, the interrupt with highest priority is served first.
The features of these interrupts are:
68
NMI has the highest priority and is always accepted. All internal and external interrupts except
NMI can be masked by the I bit in the CCR. When the I bit is set to 1, interrupts other than
NMI are not accepted.
IRQ
sensing can be selected for each interrupt individually. NMI is edge-sensed, and either the
rising or falling edge can be selected.
All interrupts are individually vectored. The software interrupt-handling routine does not have
to determine what type of interrupt has occurred.
IRQ
be masked individually by user software.
The watchdog timer can generate either an NMI or overflow interrupt, depending on the needs
of the application. For details, see section 11, Watchdog Timer.
0
0
6
to KEYIN
to IRQ
is multiplexed with 16 external sources (KEYIN
Disabling of Interrupts after Reset
Interrupts
Overview
7
can be sensed on the falling edge of the input signal, or level-sensed. The type of
15
), and 26 internal sources in the on-chip supporting modules. Table 4.2 lists
0
to KEYIN
15
). KEYIN
0
0
to KEYIN
to IRQ
7
, and
15
can
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