DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 119

• Manufacturer Part Number: DF2148RTE20IV
• Description: MCU 5V 128K I-TEMP,PB-FREE, 100-
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148RTE20IV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

2.8
2.8.1
The CPU has five main processing states: the reset state, exception-handling state, program
execution state, bus-released state, and power-down state. Figure 2.14 shows a diagram of the
processing states. Figure 2.15 indicates the state transitions.
Note: * The power-down state also includes a medium-speed mode, module stop mode,
Processing
states
Processing States
Overview
sub-active mode, sub-sleep mode, and watch mode.
Exception-handling
Program execution
Bus-released state
Power-down state
Figure 2.14 Processing States
The CPU and all on-chip supporting modules have been
initialized and are stopped.
A transient state in which the CPU changes the normal
processing flow in response to a reset, interrupt, or trap
instruction.
The CPU executes program instructions in sequence.
The external bus has been released in response to a bus
request signal from a bus master other than the CPU.
CPU operation is stopped
to conserve power.*
Reset state
state
state
Rev. 4.00 Sep 27, 2006 page 73 of 1130
Hardware standby
Software standby
Sleep mode
mode
mode
REJ09B0327-0400
Section 2 CPU