DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 109

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

5.3.2
IPR are eleven 16-bit readable/writable registers that set priorities (levels 7 to 0) for interrupts
other than NMI.
The correspondence between interrupt sources and IPR settings is shown in table 5.2. Setting a
value in the range from H'0 to H'7 in the 3-bit groups of bits 14 to 12, 10 to 8, 6 to 4, and 2 to 0
sets the priority of the corresponding interrupt.
Bit
15
14
13
12
11
10
9
8
7
Bit Name
⎯
IPR14
IPR13
IPR12
⎯
IPR10
IPR9
IPR8
⎯
Interrupt Priority Registers A to K (IPRA to IPRK)
Initial Value R/W
0
1
1
1
0
1
1
1
0
⎯
R/W
R/W
R/W
⎯
R/W
R/W
R/W
⎯
Description
Reserved
This bit is always read as 0. Write is invalid.
Sets the priority of the corresponding interrupt source.
000: Priority level 0 (Lowest)
001: Priority level 1
010: Priority level 2
011: Priority level 3
100: Priority level 4
101: Priority level 5
110: Priority level 6
111: Priority level 7 (Highest)
Reserved
This bit is always read as 0. Write is invalid.
Sets the priority of the corresponding interrupt source.
000: Priority level 0 (Lowest)
001: Priority level 1
010: Priority level 2
011: Priority level 3
100: Priority level 4
101: Priority level 5
110: Priority level 6
111: Priority level 7 (Highest)
Reserved
This bit is always read as 0. Write is invalid.
Rev.2.00 May. 28, 2009 Page 69 of 732
REJ09B0059-0200