UPD78F0500AMC-CAB-AX Renesas Electronics America, UPD78F0500AMC-CAB-AX Datasheet - Page 389

• Manufacturer Part Number: UPD78F0500AMC-CAB-AX
• Description: MCU 8BIT 30SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2r

Specifications of UPD78F0500AMC-CAB-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: 23
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 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: -

78K0/Kx2
Remark √: Mounted, −: Not mounted
10.1 Functions of Watch Timer
R01UH0008EJ0401 Rev.4.01
Jul 15, 2010
Watch timer
The watch timer has the following functions.
• Watch timer
• Interval timer
The watch timer and the interval timer can be used simultaneously.
Figure 10-1 shows the watch timer block diagram.
Remark
f
PRS
f
SUB
/2
7
f
f
f
f
PRS
SUB
W
WX
:
: f
: Peripheral hardware clock frequency
: Subsystem clock frequency
Watch timer clock frequency (f
W
f
W
or f
78K0/KB2
f
W
W
/2
/2
−
4
9
f
W
/2
11-bit prescaler
5
f
W
/2
Figure 10-1. Block Diagram of Watch Timer
6
f
WTM7
W
/2
CHAPTER 10 WATCH TIMER
7
Clear
78K0/KC2
f
W
/2
8
WTM6
f
W
/2
PRS
10
f
/2
W
Internal bus
/2
7
11
or f
f
WTM5
W
/2
SUB
9
)
78K0/KD2
WTM4
f
WX
5-bit counter
WTM3
Watch timer operation
mode register (WTM)
√
Clear
78K0/KE2
WTM2
CHAPTER 10 WATCH TIMER
f
f
WX
WX
WTM1
/2
/2
4
5
WTM0
78K0/KF2
INTWT
INTWTI
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