DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 116

MCU 5V 128K 100-TQFP

DF2345TE20

Manufacturer Part Number
DF2345TE20
Description
MCU 5V 128K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheet

Specifications of DF2345TE20

Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
71
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K 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
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
HD64F2345TE20
HD64F2345TE20

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Part Number
Manufacturer
Quantity
Price
Part Number:
DF2345TE20V
Manufacturer:
Renesas
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Part Number:
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Manufacturer:
Renesas Electronics America
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Section 4 Exception Handling
4.1.2
Exceptions originate from various sources. Trap instructions and interrupts are handled as
follows:
1. The program counter (PC), condition code register (CCR), and extended register (EXR) are
2. The interrupt mask bits are updated. The T bit is cleared to 0.
3. A vector address corresponding to the exception source is generated, and program execution
For a reset exception, steps 2 and 3 above are carried out.
4.1.3
The exception sources are classified as shown in figure 4.1. Different vector addresses are
assigned to different exception sources.
Table 4.2 lists the exception sources and their vector addresses.
In modes 6 and 7 in the H8S/2345, the on-chip ROM available for use after a power-on reset is the
64-kbyte area comprising addresses H'000000 to H'00FFFF. Care is required when setting vector
addresses. In this case, clearing the EAE bit in BCRL enables the 128-kbyte area comprising
addresses H'000000 to H'01FFFF to be used.
Rev. 4.00 Feb 15, 2006 page 90 of 900
REJ09B0291-0400
pushed onto the stack.
starts from that address.
Exception Handling Operation
Exception Vector Table
Exception
sources
Reset
Trace
Interrupts
Trap instruction
Figure 4.1 Exception Sources
Power-on reset
Manual reset
External interrupts: NMI, IRQ7 to IRQ0
Internal interrupts: 43 interrupt sources in
on-chip supporting modules

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