HD64F2676VFC33 Renesas Electronics America, HD64F2676VFC33 Datasheet - Page 170
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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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Section 5 Interrupt Controller
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 5.7 shows an example in which the TCIEV bit in the TPU’s
TIER_0 register is cleared to 0. The above contention will not occur if an enable bit or interrupt
source flag is cleared to 0 while the interrupt is masked.
5.7.2
Instructions that disable interrupts are LDC, ANDC, ORC, and XORC. After any of these
instructions is executed, all interrupts including NMI are disabled and the next instruction is
always executed. When the I bit is set by one of these instructions, the new value becomes valid
two states after execution of the instruction ends.
5.7.3
There are times when interrupt acceptance is disabled by the interrupt controller.
The interrupt controller disables interrupt acceptance for a 3-state period after the CPU has
updated the mask level with an LDC, ANDC, ORC, or XORC instruction.
Rev. 3.00 Mar 17, 2006 page 118 of 926
REJ09B0283-0300
Internal
address bus
Internal
write signal
TCIEV
TCFV
TCIV
interrupt signal
Instructions that Disable Interrupts
Times when Interrupts are Disabled
Figure 5.7 Contention between Interrupt Generation and Disabling
TIER_0 write cycle by CPU
TIER_0 address
TCIV exception handling
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