UPD78F9221CS-CAC-A Renesas Electronics America, UPD78F9221CS-CAC-A Datasheet - Page 227
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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Address: FFE4H
Address: FFE5H
Symbol
Symbol
MK0
MK1
(2)
Interrupt mask flag registers (MK0, MK1)
The interrupt mask flag is used to enable and disable the corresponding maskable interrupts.
MK0 and MK1 are set with a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets MK0 and MK1 to FFH.
Caution Because P30, P31, P41, and P43 have an alternate function as external interrupt inputs,
ADMK
<7>
MK
7
0
1
1
After reset: FFH
After reset: FFH
when the output level is changed by specifying the output mode of the port function, an
interrupt request flag is set. Therefore, the interrupt mask flag should be set to 1 before
using the output mode.
TMMK010 TMMK000 TMMKH1
Enables interrupt servicing.
Disables interrupt servicing.
STMK6
<6>
<6>
Figure 12-3. Format of Interrupt Mask Flag Registers (MK0, MK1)
SRMK6
<5>
<5>
R/W
R/W
CHAPTER 12 INTERRUPT FUNCTIONS
SREMK6
<4>
<4>
User’s Manual U16898EJ6V0UD
TMMK80
PMK1
<3>
<3>
Interrupt servicing control
PMK0
PMK3
<2>
<2>
LVIMK
PMK2
<1>
<1>
1
1
0
0
225
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