UPD78F9200MA-CAC-A Renesas Electronics America, UPD78F9200MA-CAC-A Datasheet - Page 114

• Manufacturer Part Number: UPD78F9200MA-CAC-A
• Description: MCU 8BIT 1KB FLASH 128B RAM
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9200MA-CAC-A

• Package / Case: *
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 10MHz
• Number Of I /o: 7
• Core Processor: 78K0S
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Program Memory Size: 1KB (1K x 8)
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Peripherals: LVD, POR, PWM, WDT
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -

112
CR010 capture value
CR000 capture value
(4) Pulse width measurement by means of restart
Note If the valid edge of TI000 is specified to be both the rising and falling edges, 16-bit timer capture/compare
TM00 count value
CRC00
TI000 pin input
Note The carry flag is set to 1. Ignore this setting.
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 input of a valid edge to the TI000 pin is detected, the count value of 16-bit timer/counter 00 (TM00) is
taken into 16-bit timer capture/compare register 010 (CR010), and then the pulse width of the signal input to
the TI000 pin is measured by clearing TM00 and restarting the count.
The edge specification can be selected from two types, rising or falling edges, by bits 4 and 5 (ES000 and
ES010) of prescaler mode register 00 (PRM00)
Sampling is performed at the interval selected by prescaler mode register 00 (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.
Count clock
INTTM010
register 000 (CR000) cannot perform the capture operation.
Figure 6-26. Control Register Settings for Pulse Width Measurement by Means of Restart
Figure 6-25. Timing of Pulse Width Measurement Operation by Free-Running Counter
7
0
6
0
0000H
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00 ( PD78F920x ONLY)
t
and Two Capture Registers (with Rising Edge Specified)
5
0
0001H
(a) Capture/compare control register 00 (CRC00)
4
0
3
0
(with Rising Edge Specified) (1/2)
D0
CRC002
(D1
D0
User’s Manual U18172EJ3V0UD
D0 + 1
1
D0)
CRC001
1
t
CRC000
D1
1
D1
D1 + 1
CR000 used as capture register
Captures to CR000 at inverse edge to valid edge of TI000
CR010 used as capture register
(D2
FFFFH
D1)
0000H
t
Note
D2
(D3
D2 + 1
D2
D2)
t
D3
Note
.
D3