UPD78F9234MC-5A4-A Renesas Electronics America, UPD78F9234MC-5A4-A Datasheet - Page 94

• Manufacturer Part Number: UPD78F9234MC-5A4-A
• Description: MCU 8BIT 8KB FLASH 30PIN
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9234MC-5A4-A

• Core Processor: 78K0S
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 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: -

92
(3) 16-bit timer capture/compare register 010 (CR010)
Caution
CR010 is a 16-bit register which has the functions of both a capture register and a compare register. Whether
it is used as a capture register or a compare register is set by bit 2 (CRC002) of capture/compare control
register 00 (CRC00).
CR010 is set by 16-bit memory manipulation instruction.
Reset signal generation clears CR010 to 0000H.
• When CR010 is used as a compare register
• When CR010 is used as a capture register
Remarks 1. Setting ES010, ES000 = 1, 0 is prohibited.
Cautions 1. In the free-running mode and in the clear & start mode using the valid edge of the TI000
Falling edge
Rising edge
Both rising and falling edges
The value set in CR010 is constantly compared with the 16-bit timer counter 00 (TM00) count value, and an
interrupt request (INTTM010) is generated if they match.
It is possible to select the valid edge of the TI000 pin as the capture trigger. The TI000 valid edge is set by
means of prescaler mode register 00 (PRM00) (refer to Table 6-3).
Address: FF16H, FF17H
Symbol
CR010
CR010 Capture Trigger
2. ES010, ES000: Bits 5 and 4 of prescaler mode register 00 (PRM00)
Table 6-3. CR010 Capture Trigger and Valid Edge of TI000 Pin (CRC002 = 1)
7. Changing the CR000 setting during TM00 operation may cause a malfunction. To change
2. If the new value of CR010 is less than the value of 16-bit timer counter 0 (TM00), TM00
3. The value of CR010 after 16-bit timer/event counter 00 has stopped is not guaranteed.
4. The capture operation may not be performed for CR010 set in compare mode even if a
Figure 6-4. Format of 16-bit Timer Capture/Compare Register 010 (CR010)
CRC002:
the setting, refer to 6.5 Cautions Related to 16-bit Timer/Event Counter 00 (17) Changing
compare register during timer operation.
pin, if CR010 is set to 0000H, an interrupt request (INTTM010) is generated when CR010
changes from 0000H to 0001H following overflow (FFFFH).
continues counting, overflows, and then starts counting from 0 again. If the new value of
CR010 is less than the old value, therefore, the timer must be reset to be restarted after
the value of CR010 is changed.
capture trigger is input.
7
6
5
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
After reset: 0000H
Bit 2 of capture/compare control register 00 (CRC00)
FF17H
4
Falling edge
Rising edge
Both rising and falling edges
3
User’s Manual U17446EJ5V0UD
2
1
R/W
0
7
TI000 Pin Valid Edge
6
5
FF16H
4
3
ES010
1
0
0
2
1
ES000
0
0
1
1