UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 197

• Manufacturer Part Number: UPD78F0034BGC-8BS-A
• Description: MCU 8-Bit 78K0 CISC 32KB Flash 2.5V/3.3V/5V 64-Pin LQFP
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0034BGC-8BS-A

• Package: 64LQFP
• Family Name: 78K0
• Maximum Speed: 12 MHz
• Ram Size: 1 KB
• Program Memory Size: 32 KB
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 51
• Interface Type: 3-Wire/UART
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

8.4.2 External event counter operation
bit timer counter 0 (TM0).
to 0 and the interrupt request signal (INTTM00) is generated.
mode register 0 (PRM0).
the internal clock (f
The external event counter counts the number of external clock pulses to be input to the TI00 pin with using 16-
TM0 is incremented each time the valid edge specified by prescaler mode register 0 (PRM0) is input.
When the TM0 count value matches the 16-bit timer capture/compare register 00 (CR00) value, TM0 is cleared
Input a value other than 0000H to CR00. (A count operation with a pulse cannot be carried out.)
The rising edge, the falling edge, or both edges can be selected using bits 4 and 5 (ES00 and ES01) of prescaler
Because an operation is carried out only when the valid edge of the TI00 pin is detected twice after sampling with
Caution
TMC0
CRC0
0
0
When used as an external event counter, the P70/TI00/TO0 pin cannot be used as a timer output
(TO0).
0
0
Figure 8-11. Control Register Settings in External Event Counter Mode
X
/2
3
), noise with a short pulse width can be removed.
0
0
0
0
(a) 16-bit timer mode control register 0 (TMC0)
(b) Capture/compare control register 0 (CRC0)
CHAPTER 8 16-BIT TIMER/EVENT COUNTER 0
TMC03
1
0
TMC02
CRC02
0/1
1
User’s Manual U14046EJ5V0UD
CRC01
0/1
0
CRC00
OVF0
0
0
Clears and starts on match between TM0 and CR00.
CR00 used as compare register
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