UPD78F0513AMC-GAA-AX Renesas Electronics America, UPD78F0513AMC-GAA-AX Datasheet - Page 655
UPD78F0513AMC-GAA-AX
Manufacturer Part Number
UPD78F0513AMC-GAA-AX
Description
MCU 8BIT 38PIN SSOP
Manufacturer
Renesas Electronics America
Series
78K0/Kx2r
Datasheet
1.UPD78F0500MC-5A4-A.pdf
(982 pages)
Specifications of UPD78F0513AMC-GAA-AX
Core Processor
78K/0
Core Size
8-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
31
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
UPD78F0513AMC-GAA-AX
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
- Current page: 655 of 982
- Download datasheet (7Mb)
78K0/Kx2
(5) Program status word (PSW)
R01UH0008EJ0401 Rev.4.01
Jul 15, 2010
The program status word is a register used to hold the instruction execution result and the current status for an
interrupt request. The IE flag that sets maskable interrupt enable/disable and the ISP flag that controls multiple
interrupt servicing are mapped to the PSW.
Besides 8-bit read/write, this register can carry out operations using bit manipulation instructions and dedicated
instructions (EI and DI). When a vectored interrupt request is acknowledged, if the BRK instruction is executed, the
contents of the PSW are automatically saved into a stack and the IE flag is reset to 0. If a maskable interrupt request
is acknowledged, the contents of the priority specification flag of the acknowledged interrupt are transferred to the ISP
flag. The PSW contents are also saved into the stack with the PUSH PSW instruction. They are restored from the
stack with the RETI, RETB, and POP PSW instructions.
Reset signal generation sets PSW to 02H.
PSW
<7>
IE
<6>
Z
RBS1
<5>
<4>
AC
Figure 20-18. Format of Program Status Word
RBS0
<3>
2
0
<1>
ISP
CY
0
ISP
IE
0
1
0
1
Used when normal instruction is executed
After reset
02H
High-priority interrupt servicing (low-priority
interrupt disabled)
Interrupt request not acknowledged, or low-
priority interrupt servicing (all maskable
interrupts enabled)
Disabled
Enabled
Interrupt request acknowledgment enable/disable
Priority of interrupt currently being serviced
CHAPTER 20 INTERRUPT FUNCTIONS
655
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