HD6473837FV Renesas Electronics America, HD6473837FV Datasheet - Page 94

• Manufacturer Part Number: HD6473837FV
• Description: IC H8/3837 MCU FLASH 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD6473837FV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 5MHz
• Connectivity: SCI
• Peripherals: LCD, PWM
• Number Of I /o: 84
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: OTP
• Eeprom Size: -
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-BQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Notes: 1. When disabling interrupts by clearing bits in an interrupt enable register, or when
If the interrupt is accepted, after processing of the current instruction is completed, both PC
and CCR are pushed onto the stack. The state of the stack at this time is shown in figure 3.5.
The PC value pushed onto the stack is the address of the first instruction to be executed upon
return from interrupt handling.
The I bit of CCR is set to 1, masking all further interrupts.
The vector address corresponding to the accepted interrupt is generated, and the interrupt
handling routine located at the address indicated by the contents of the vector address is
executed.
2. If the above clear operations are performed while I = 0, and as a result a conflict arises
External or
internal
interrupts
External
interrupts or
internal
interrupt
enable
signals
clearing bits in an interrupt request register, always do so while interrupts are masked
(I = 1).
between the clear instruction and an interrupt request, exception processing for the
interrupt will be executed after the clear instruction has been executed.
Figure 3.3 Block Diagram of Interrupt Controller
Interrupt controller
I
CCR (CPU)
Interrupt
request
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