UPD78F9221CS-CAC-A Renesas Electronics America, UPD78F9221CS-CAC-A Datasheet - Page 160
UPD78F9221CS-CAC-A
Manufacturer Part Number
UPD78F9221CS-CAC-A
Description
MCU 8BIT 2KB FLASH 20PIN
Manufacturer
Renesas Electronics America
Series
78K0S/Kx1+r
Datasheet
1.UPD78F9221MC-5A4-A.pdf
(418 pages)
Specifications of UPD78F9221CS-CAC-A
Core Processor
78K0S
Core Size
8-Bit
Speed
10MHz
Connectivity
LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
2KB (2K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 4x10b
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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158
WDTE = “ACH”
Clear WDT counter.
WDT count stops.
HALT
instruction
Figure 9-5. Status Transition Diagram When “Low-Speed Internal Oscillator Can Be Stopped by
HALT
WDT clock: f
Overflow time: 2
WDT count continues.
Interrupt
Software” Is Selected by Option Byte
X
13
/f
WDT clock = f
Select overflow time
(settable only once).
STOP
instruction
X
to 2
20
/f
X
X
WDT count stops.
STOP
WDTE = “ACH”
Clear WDT counter.
Interrupt
CHAPTER 9 WATCHDOG TIMER
User’s Manual U16898EJ6V0UD
WDT clock: f
Overflow time: 4.27 ms to 546.13 ms (MAX.)
WDT count continues.
HALT
instruction
WDT clock: f
Overflow time: 546.13 ms (MAX.)
RL
WDT count stops.
Interrupt
RL
Reset
WDT clock = f
Select overflow time
(settable only once).
HALT
STOP
instruction
RL
Interrupt
HALT instruction
LSRSTOP = 0
LSRSTOP = 1
WDCS4 = 1
WDT operation stops.
WDT count stops.
Interrupt
STOP
STOP
instruction
WDT clock: f
WDT count stops.
WDTE = “ACH”
Clear WDT counter.
RL
Interrupt
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