UPD78F9222CS-CAC-A Renesas Electronics America, UPD78F9222CS-CAC-A Datasheet - Page 106

• Manufacturer Part Number: UPD78F9222CS-CAC-A
• Description: MCU 8BIT 4KB FLASH 20PIN
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9222CS-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: 4KB (4K 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: -

104
(1) Pulse width measurement with free-running counter and one capture register
Remark 0/1: Setting 0 or 1 allows another function to be used simultaneously with pulse width measurement.
Specify both the rising and falling edges as the valid edges of the TI000 pin, by using bits 4 and 5 (ES000 and
ES010) of PRM00.
When 16-bit timer counter 00 (TM00) is operated in free-running mode, and the valid edge specified by
PRM00 is input, the value of TM00 is taken into 16-bit timer capture/compare register 010 (CR010) and an
external interrupt request signal (INTTM010) is set.
Sampling is performed using the count clock selected by PRM00, and a capture operation is only performed
when a valid level of the TI000 pin is detected twice, thus eliminating noise with a short pulse width.
Caution The measurable pulse width in this operation example is up to 1 cycle of the timer counter.
Figure 6-18. Control Register Settings for Pulse Width Measurement with Free-Running Counter
See the description of the respective control registers for details.
PRM00
CRC00
TMC00
and One Capture Register (When TI000 and CR010 Are Used)
ES101
0/1
7
0
7
0
(c) 16-bit timer mode control register 00 (TMC00)
(a) Capture/compare control register 00 (CRC00)
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
ES100
0/1
6
0
(b) Prescaler mode register 00 (PRM00)
6
0
ES010
5
0
1
5
0
User’s Manual U16898EJ6V0UD
ES000
4
0
1
4
0
TMC003
3
0
3
0
0
CRC002
TMC002
1
2
0
1
CRC001
TMC001
PRM001
0/1
0/1
0/1
CRC000
OVF00
PRM000
0/1
0
0
CR000 used as compare register
CR010 used as capture register
Free-running mode
Selects count clock (setting “11” is prohibited).
Specifies both edges for pulse width detection.
Setting invalid (setting “10” is prohibited.)