HD6417751RF240V Renesas Electronics America, HD6417751RF240V Datasheet - Page 890

• Manufacturer Part Number: HD6417751RF240V
• Description: MPU 1.5/3.3V 0K PB-FREE 256-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417751RF240V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 240MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-QFP Exposed Pad, 256-eQFP, 256-HQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

19. Interrupt Controller (INTC)
19.5
The time from generation of an interrupt request until interrupt exception handling is performed
and fetching of the first instruction of the exception handler is started (the interrupt response time)
is shown in table 19.8.
Table 19.8 Interrupt Response Time
Item
Time for priority decision and
SR mask bit comparison*
Wait time until end of
sequence being executed by
CPU
Time from interrupt exception
handling (save of SR and PC)
until fetch of first instruction of
exception handler is started
Response
time
Legend:
Icyc:
Bcyc: One CKIO cycle
S:
Note:
Rev.4.00 Oct. 10, 2008 Page 790 of 1122
REJ09B0370-0400
One cycle of internal clock supplied to CPU, etc.
Latency of instruction
*
Interrupt Response Time
In the SH7751, this includes the case where the mask bit (IMASK) in SR is changed
and a new interrupt is generated.
Total
Minimum
case
Maximum
case
NMI
1Icyc + 4Bcyc
S – 1 (≥ 0) ×
Icyc
4 × Icyc
5Icyc + 4Bcyc
+ (S – 1)Icyc
13Icyc
36 + S Icyc
Number of States
RL
1Icyc + 7Bcyc
S – 1 (≥ 0) ×
Icyc
4 × Icyc
5Icyc + 7Bcyc
+ (S – 1)Icyc
19Icyc
60 + S Icyc
Peripheral
Modules
1Icyc + 2Bcyc
S – 1 (≥ 0) ×
Icyc
4 × Icyc
5Icyc + 2Bcyc
+ (S – 1)Icyc
9Icyc
20 + S Icyc
Notes
When Icyc:
Bcyc = 2:1
When Icyc:
Bcyc = 8:1