R5F21162SP#U0 Renesas Electronics America, R5F21162SP#U0 Datasheet - Page 80

• Manufacturer Part Number: R5F21162SP#U0
• Description: IC R8C MCU FLASH 8K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/16r

Specifications of R5F21162SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/16 Group, R8C/17 Group
Rev.2.10
REJ09B0169-0210
Figure 11.6
Table 11.5
Watchdog Timer, Oscillation Stop Detection, Voltage Monitor 2 7
Software, Address Match, Single-Step
11.1.6.5
11.1.6.6
Figure 11.6 shows an Interrupt Response Time. The interrupt response time is the period between
an interrupt request generation and the execution of the first instruction in an interrupt routine. An
interrupt response time includes the period between an interrupt request generation and the
completed execution of an instruction (see #a in Figure 11.6) and the period required to perform an
interrupt sequence (20 cycles, see #b in Figure 11.6).
When an interrupt request of a maskable interrupt is acknowledged, the interrupt priority level of the
acknowledged interrupt is set in the IPL.
When a software interrupt and special interrupt request are acknowledged, the value listed in Table
11.5 is set to the IPL. Table 11.5 lists the IPL Value When Software or Special Interrupts Is
Acknowledged.
Jan 19, 2006
Interrupt request is generated Interrupt request is acknowledged
Interrupt Response Time
IPL Change when Interrupt Request is Acknowledged
IPL Value When Software or Special Interrupts Is Acknowledged
Interrupt Response Time
(a) Period between an interrupt request generation and the completed execution of an
(b) 21 cycles for address match and single-step interrupts.
instruction. The length of this time varies depending on the instruction being executed.
The DIVX instruction requires the longest time; 30 cycles (no wait and when the register
is set as the divisor)
Interrupt Factor
Page 65 of 254
Instruction
(a)
Interrupt Response Time
Interrupt Sequence
20 Cycles (b)
Not changed
interrupt routine
Instruction in
Value Set to IPL
Time
11. Interrupt