HD64F3048F16 Renesas Electronics America, HD64F3048F16 Datasheet - Page 136
HD64F3048F16
Manufacturer Part Number
HD64F3048F16
Description
IC H8 MCU FLASH 128K 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of HD64F3048F16
Core Processor
H8/300H
Core Size
16-Bit
Speed
8MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
70
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-QFP
Package
100PQFP
Family Name
H8
Maximum Speed
16 MHz
Operating Supply Voltage
5 V
Data Bus Width
16|32 Bit
Number Of Programmable I/os
70
Interface Type
SCI
On-chip Adc
8-chx10-bit
On-chip Dac
2-chx8-bit
Number Of Timers
5
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Section 5 Interrupt Controller
5.4
5.4.1
The H8/3048 Group handles interrupts differently depending on the setting of the UE bit. When
UE = 1, interrupts are controlled by the I bit. When UE = 0, interrupts are controlled by the I and
UI bits. Table 5.4 indicates how interrupts are handled for all setting combinations of the UE, I,
and UI bits.
NMI interrupts are always accepted except in the reset and hardware standby states. IRQ interrupts
and interrupts from the on-chip supporting modules have their own enable bits. Interrupt requests
are ignored when the enable bits are cleared to 0.
Table 5.4
SYSCR
UE
1
0
UE = 1: Interrupts IRQ
masked by the I bit in the CPU’s CCR. Interrupts are masked when the I bit is set to 1, and
unmasked when the I bit is cleared to 0. Interrupts with priority level 1 have higher priority. Figure
5.4 is a flowchart showing how interrupts are accepted when UE = 1.
Rev. 7.00 Sep 21, 2005 page 110 of 878
REJ09B0259-0700
Interrupt Operation
Interrupt Handling Process
I
0
1
0
1
UE, I, and UI Bit Settings and Interrupt Handling
CCR
UI
—
—
—
0
1
0
to IRQ
Description
All interrupts are accepted. Interrupts with priority level 1 have higher
priority.
No interrupts are accepted except NMI.
All interrupts are accepted. Interrupts with priority level 1 have higher
priority.
NMI and interrupts with priority level 1 are accepted.
No interrupts are accepted except NMI.
5
and interrupts from the on-chip supporting modules can all be
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