HD64F2378RVFQ33 Renesas Electronics America, HD64F2378RVFQ33 Datasheet - Page 202
HD64F2378RVFQ33
Manufacturer Part Number
HD64F2378RVFQ33
Description
IC H8S MCU FLASH 512K 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of HD64F2378RVFQ33
Core Processor
H8S/2000
Core Size
16-Bit
Speed
33MHz
Connectivity
I²C, IrDA, SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
97
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 16x10b; D/A 6x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Section 5 Interrupt Controller
5.7
5.7.1
When an interrupt enable bit is cleared to 0 to mask interrupts, the masking becomes effective
after execution of the instruction.
When an interrupt enable bit is cleared to 0 by an instruction such as BCLR or MOV, if an
interrupt is generated during execution of the instruction, the interrupt concerned will still be
enabled on completion of the instruction, and so interrupt exception handling for that interrupt will
be executed on completion of the instruction. However, if there is an interrupt request of higher
priority than that interrupt, interrupt exception handling will be executed for the higher-priority
interrupt, and the lower-priority interrupt will be ignored. The same also applies when an interrupt
source flag is cleared to 0. Figure 5.6 shows an example in which the TCIEV bit in the TPU’s
TIER_0 register is cleared to 0. The above conflict will not occur if an enable bit or interrupt
source flag is cleared to 0 while the interrupt is masked.
Rev.7.00 Mar. 18, 2009 page 134 of 1136
REJ09B0109-0700
Internal
address bus
Internal
write signal
TCIEV
TCFV
TCIV
interrupt signal
Usage Notes
Conflict between Interrupt Generation and Disabling
φ
Figure 5.6 Conflict between Interrupt Generation and Disabling
TIER_0 write cycle by CPU
TIER_0 address
TCIV exception handling
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