UPD78F1001GB-GAF-AX Renesas Electronics America, UPD78F1001GB-GAF-AX Datasheet - Page 896
UPD78F1001GB-GAF-AX
Manufacturer Part Number
UPD78F1001GB-GAF-AX
Description
MCU 16BIT 78K0R/KX3-L 44-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3-Lr
Datasheet
1.UPD78F1000GB-GAF-AX.pdf
(1171 pages)
Specifications of UPD78F1001GB-GAF-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F1001GB-GAF-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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78K0R/Kx3-L
(5) Program status word (PSW)
R01UH0106EJ0300 Rev.3.00
Oct 01, 2010
PSW
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 ISP0 and ISP1 flags 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
ISP0 and ISP1 flags. 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 06H.
<7>
IE
<6>
Z
RBS1
<5>
<4>
AC
Figure 18-11. Configuration of Program Status Word
RBS0
<3>
ISP1
<2>
ISP0
<1>
CY
0
ISP1
IE
0
0
1
1
0
1
Used when normal instruction is executed
After reset
06H
ISP0
Disabled
Enabled
0
1
0
1
Interrupt request acknowledgment enable/disable
Enables interrupt of level 0
(while interrupt of level 1 or 0 is being serviced).
Enables interrupt of level 0 and 1
(while interrupt of level 2 is being serviced).
Enables interrupt of level 0 to 2
(while interrupt of level 3 is being serviced).
Enables all interrupts
(waits for acknowledgment of an interrupt).
CHAPTER 18 INTERRUPT FUNCTIONS
Priority of interrupt currently being serviced
896
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