DF2506BR26DV Renesas Electronics America, DF2506BR26DV Datasheet - Page 148

• Manufacturer Part Number: DF2506BR26DV
• Description: IC H8S/2506 MCU FLASH 176-LFBGA
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2506BR26DV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 26MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 5 Interrupt Controller
5.5
5.5.1
Interrupt operations in this LSI differ depending on the interrupt control mode.
NMI interrupts are accepted at all times except in the reset state and the hardware standby state. In
the case of IRQ interrupts and on-chip peripheral module interrupts, an enable bit is provided for
each interrupt. Clearing an enable bit to 0 disables the corresponding interrupt request. Interrupt
sources for which the enable bits are set to 1 are controlled by the interrupt controller.
Table 5.3 shows the interrupt control modes.
The interrupt controller performs interrupt control according to the interrupt control mode set by
the INTM1 and INTM0 bits in SYSCR, the priorities set in IPR, and the masking state indicated
by the I bit in the CPU’s CCR, and bits I2 to I0 in EXR.
Table 5.3
Figures 5.4 shows a block diagram of the priority decision circuit.
Rev. 6.00 Sep. 24, 2009 Page 100 of 928
REJ09B0099-0600
Interrupt
Control Mode INTM1 INTM0
0
⎯
2
⎯
Operation
Interrupt Control Modes and Interrupt Operation
Interrupt Control Modes
SYSCR
0
1
0
1
0
1
Priority Setting
Register
⎯
⎯
IPR
⎯
Interrupt
Mask Bits
I
⎯
I2 to I0
⎯
Description
Interrupt mask control is
performed by the I bit.
Setting prohibited
8-level interrupt mask control is
performed by bits I2 to I0.
8 priority levels can be set with
IPR.
Setting prohibited