UPD78F1146AGA-HAB-AX Renesas Electronics America, UPD78F1146AGA-HAB-AX Datasheet - Page 227
UPD78F1146AGA-HAB-AX
Manufacturer Part Number
UPD78F1146AGA-HAB-AX
Description
MCU 16BIT 78K0R/KX3 64-TQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3r
Datasheet
1.UPD78F1142AGA-HAB-AX.pdf
(880 pages)
Specifications of UPD78F1146AGA-HAB-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
50
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
12K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
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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Part Number:
UPD78F1146AGA-HAB-AX
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6.7.2 Operation as external event counter
(external event) is detected in the TI0k pin. When a specified count value is reached, the event counter generates an
interrupt. The specified number of counts can be calculated by the following expression.
TCR0n loads the value of TDR0n again, and outputs INTTM0n.
The timer array unit can be used as an external event counter that counts the number of times the valid input edge
TCR0n operates as a down counter in the event counter mode.
When the channel start trigger bit (TS0n) is set to 1, TCR0n loads the value of TDR0n.
TCR0n counts down each time the valid input edge of the TI0k pin has been detected. When TCR0n = 0000H,
After that, the above operation is repeated.
TO0k must not be used because its waveform depends on the external event and irregular.
TDR0n can be rewritten at any time. The new value of TDR0n becomes valid during the next count period.
Specified number of counts = Set value of TDR0n + 1
TI0k pin
Remark
Remark
TS0n
INTTM0n
Figure 6-40. Example of Basic Timing of Operation as External Event Counter
n = 0 to 7, k = 0 to 6
n = 0 to 7, k = 0 to 6
TCR0n
TDR0n
detection
TS0n
TE0n
TI0k
Figure 6-39. Block Diagram of Operation as External Event Counter
Edge
0000H
3
4 events
CHAPTER 6 TIMER ARRAY UNIT
2
0003H
User’s Manual U17854EJ9V0UD
1
0
Timer counter
Data register
(TCR0n)
3
(TDR0n)
4 events
2
1
0
2
3 events
controller
0002H
Interrupt
1
0
2
Interrupt signal
(INTTM0n)
1
225
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