DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 162

• Manufacturer Part Number: DF2148BTE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148BTE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SCI, X-Bus
• Peripherals: PWM, WDT
• Number Of I /o: 74
• 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-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148BTE20; HD64F2148BTE20

Section 5 Interrupt Controller
6. Next, the I bit in CCR is set to 1. This masks all interrupts except for NMI and address break
7. The CPU generates a vector address for the accepted interrupt and starts execution of the
Figure 5.4 Flowchart of Procedure up to Interrupt Acceptance in Interrupt Control Mode 0
Rev. 3.00 Mar 21, 2006 page 106 of 788
REJ09B0300-0300
interrupts.
interrupt handling routine at the address indicated by the contents of the vector address in the
vector table.
IRQ0
An interrupt with interrupt
Yes
control level 1?
IRQ1
No
Yes
Yes
Yes
No
IBFI3
Branch to interrupt handling routine
Program excution state
Yes
Read vector address
Interrupt generated?
Save PC and CCR
No
I = 0
I
NMI
1
No
Yes
Yes
IRQ0
Yes
IRQ1
No
No
No
Yes
No
IBFI3
Yes
Hold pending