HD64F2338VFC25 Renesas Electronics America, HD64F2338VFC25 Datasheet - Page 134
HD64F2338VFC25
Manufacturer Part Number
HD64F2338VFC25
Description
MCU 3V 256K 144-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheet
1.DF2338VFC25V.pdf
(1246 pages)
Specifications of HD64F2338VFC25
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
106
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 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
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F2338VFC25
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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As shown in table 5.3, multiple interrupts are assigned to one IPR. Setting a value in the range
from H'0 to H'7 in the 3-bit groups of bits 6 to 4 and 2 to 0 sets the priority of the corresponding
interrupt. The lowest priority level, level 0, is assigned by setting H'0, and the highest priority
level, level 7, by setting H'7.
When interrupt requests are generated, the highest-priority interrupt according to the priority
levels set in the IPR registers is selected. This interrupt level is then compared with the interrupt
mask level set by the interrupt mask bits (I2 to I0) in the extend register (EXR) in the CPU, and if
the priority level of the interrupt is higher than the set mask level, an interrupt request is issued to
the CPU.
5.2.3
IER is an 8-bit readable/writable register that controls enabling and disabling of interrupt requests
IRQ7 to IRQ0.
IER is initialized to H'00 by a reset and in hardware standby mode.
Bits 7 to 0—IRQ7 to IRQ0 Enable (IRQ7E to IRQ0E): These bits select whether IRQ7 to
IRQ0 are enabled or disabled.
Bit n
IRQnE
0
1
Rev.4.00 Sep. 07, 2007 Page 102 of 1210
REJ09B0245-0400
Bit
Initial value :
R/W
IRQ Enable Register (IER)
Description
IRQn interrupts disabled
IRQn interrupts enabled
:
:
IRQ7E
R/W
7
0
IRQ6E
R/W
6
0
IRQ5E
R/W
5
0
IRQ4E
R/W
4
0
IRQ3E
R/W
0
3
IRQ2E
R/W
2
0
IRQ1E
R/W
1
0
(Initial value)
(n = 7 to 0)
IRQ0E
R/W
0
0
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