HD64F2676VFC33 Renesas Electronics America, HD64F2676VFC33 Datasheet - Page 107
HD64F2676VFC33
Manufacturer Part Number
HD64F2676VFC33
Description
IC H8S MCU FLASH 256K 144-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Specifications of HD64F2676VFC33
Core Processor
H8S/2600
Core Size
16-Bit
Speed
33MHz
Connectivity
IrDA, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
103
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 12x10b; D/A 4x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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- Current page: 107 of 981
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2.8
The H8S/2600 CPU has five main processing states: the reset state, exception handling state,
program execution state, bus-released state, and program stop state. Figure 2.13 indicates the state
transitions.
Reset State
The CPU and on-chip peripheral modules are all initialized and stop. When the RES input goes
low, all current processing stops and the CPU enters the reset state. All interrupts are masked
in the reset state. Reset exception handling starts when the RES signal changes from low to
high. For details, refer to section 4, Exception Handling.
The reset state can also be entered by a watchdog timer overflow.
Exception-Handling State
The exception-handling state is a transient state that occurs when the CPU alters the normal
processing flow due to an exception source, such as, a reset, trace, interrupt, or trap instruction.
The CPU fetches a start address (vector) from the exception vector table and branches to that
address. For further details, refer to section 4, Exception Handling.
Program Execution State
In this state the CPU executes program instructions in sequence.
Bus-Released State
In a product which has a bus master other than the CPU, such as a direct memory access
controller (DMAC) and a data transfer controller (DTC), the bus-released state occurs when
the bus has been released in response to a bus request from a bus master other than the CPU.
While the bus is released, the CPU halts operations.
Program stop state
This is a power-down state in which the CPU stops operating. The program stop state occurs
when a SLEEP instruction is executed or the CPU enters hardware standby mode. For further
details, refer to section 22, Power-Down Modes.
Processing States
Rev. 3.00 Mar 17, 2006 page 55 of 926
REJ09B0283-0300
Section 2 CPU
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