UPD78F1174AGF-GAT-AX Renesas Electronics America, UPD78F1174AGF-GAT-AX Datasheet - Page 678
UPD78F1174AGF-GAT-AX
Manufacturer Part Number
UPD78F1174AGF-GAT-AX
Description
MCU 16BIT 78K0R/KX3 128-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3r
Datasheet
1.UPD78F1174AGF-GAT-AX.pdf
(968 pages)
Specifications of UPD78F1174AGF-GAT-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, EBI/EMI, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
111
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Part Number:
UPD78F1174AGF-GAT-AX
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request INTyy is not acknowledged and multiple interrupt servicing does not take place. The INTyy interrupt request
is held pending, and is acknowledged following execution of one main processing instruction.
676
Example 3. Multiple interrupt servicing does not occur because interrupts are not enabled
Interrupts are not enabled during servicing of interrupt INTxx (EI instruction is not issued), therefore, interrupt
PR = 00: Specify level 0 with ××PR1× = 0, ××PR0× = 0 (higher priority level)
PR = 01: Specify level 1 with ××PR1× = 0, ××PR0× = 1
PR = 10: Specify level 2 with ××PR1× = 1, ××PR0× = 0
PR = 11: Specify level 3 with ××PR1× = 1, ××PR0× = 1 (lower priority level)
IE = 0:
IE = 1:
Interrupt request acknowledgment is disabled
Interrupt request acknowledgment is enabled.
Figure 17-10. Examples of Multiple Interrupt Servicing (2/2)
(PR = 11)
1 instruction execution
INTxx
Main processing
CHAPTER 17 INTERRUPT FUNCTIONS
EI
User’s Manual U18432EJ5V0UD
IE = 1
IE = 0
(PR = 00)
INTyy
IE = 1
INTxx servicing INTyy servicing
IE = 0
RETI
RETI
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