HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 90

• Manufacturer Part Number: HD6477021X20V
• Description: MCU 5V 32K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7020r

Specifications of HD6477021X20V

• Core Processor: SH-1
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

5.3.2
ICR is a 16-bit register that sets the input detection mode of the external interrupt input pins NMI
and IRQ0–IRQ7 and indicates the input signal level to the NMI pin. A reset initializes ICR but the
standby mode does not.
Note: When NMI input is high: 1; when NMI input is low: 0
•
Bit 15: NMIL
0
1
•
•
Bit 8: NMIE
0
1
Bits 7–0 (IRQ0–IRQ7 sense select (IRQ0S–IRQ7S)): IRQ0–IRQ7 select whether the falling edge or
low level of the IRQ inputs is sensed at the pins IRQ0–IRQ7.
Bits 7–0: IRQ0S–IRQ7S
0
1
Bit 15 (NMI input level (NMIL)): NMIL sets the level of the signal input at the NMI pin.
NMIL cannot be modified. The NMI input level can be read to determine the NMI pin level.
Bits 14–9 (reserved): These bits always read as 0. The write value should always be 0.
Bit 8 (NMI edge select (NMIE)): NMIE selects whether the falling or rising edge of the
interrupt request signal to the NMI pin is sensed.
Initial value:
Initial value:
Bit name:
Bit name:
Interrupt Control Register (ICR)
R/W:
R/W:
Bit:
Bit:
IRQ0S
NMIL
R/W
15
R
7
0
*
Description
NMI input level is low
NMI input level is high
Description
Interrupt is requested on falling edge of NMI input (initial value)
Interrupt is requested on rising edge of NMI input
Description
Interrupt is requested when IRQ input is low (initial value)
Interrupt is requested on falling edge of IRQ input
IRQ1S
R/W
14
—
—
0
6
0
IRQ2S
R/W
13
—
—
0
5
0
IRQ3S
R/W
12
—
—
0
4
0
IRQ4S
R/W
11
—
—
0
3
0
IRQ5S
R/W
10
—
—
0
2
0
IRQ6S
R/W
—
—
9
0
1
0
RENESAS 69
IRQ7S
NMIE
R/W
R/W
8
0
0
0