UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 115
![8BIT MCU, 4K FLASH, 256B RAM, 78F9222](/photos/19/3/190342/42268256_sml.jpg)
UPD78F9222MC(T)-5A4-A
Manufacturer Part Number
UPD78F9222MC(T)-5A4-A
Description
8BIT MCU, 4K FLASH, 256B RAM, 78F9222
Manufacturer
NEC
Datasheet
1.UPD78F9222MCT-5A4-A.pdf
(414 pages)
Specifications of UPD78F9222MC(T)-5A4-A
Controller Family/series
UPD78
No. Of I/o's
17
Ram Memory Size
256Byte
Cpu Speed
10MHz
No. Of Timers
4
No. Of
RoHS Compliant
Core Size
8bit
Program Memory Size
4KB
Oscillator Type
External, Internal
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(2) One-shot pulse output with external trigger
CR010 set value
CR000 set value
TO00 pin output
Caution 16-bit timer counter 00 starts operating as soon as a value other than 00 (operation stop
Remark N < M
A one-shot pulse can be output from the TO00 pin by setting 16-bit timer mode control register 00 (TMC00),
capture/compare control register 00 (CRC00), and 16-bit timer output control register 00 (TOC00) as shown in
Figure 6-34, and by using the valid edge of the TI000 pin as an external trigger.
The valid edge of the TI000 pin is specified by bits 4 and 5 (ES000, ES010) of prescaler mode register 00
(PRM00). The rising, falling, or both the rising and falling edges can be specified.
When the valid edge of the TI000 pin is detected, the 16-bit timer/event counter is cleared and started, and the
output becomes active at the count value set in advance to 16-bit timer capture/compare register 010
(CR010).
capture/compare register 000 (CR000)
Note The case where N < M is described here. When N > M, the output becomes active with the CR000
Caution Do not input the external trigger again while the one-shot pulse is output. To output the one-
Count clock
TM00 count
INTTM010
INTTM000
OSPT00
register and inactive with the CR010 register. Do not set N to M.
Figure 6-33. Timing of One-Shot Pulse Output Operation with Software Trigger
mode) is set to the TMC003 and TMC002 bits.
shot pulse again, wait until the current one-shot pulse output is completed.
After that, the output becomes inactive at the count value set in advance to 16-bit timer
Set TMC00 to 04H
(TM00 count starts)
0000H
M
N
0001H
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
N
User’s Manual U16898EJ5V0UD
Note
N + 1
.
N
M
0000H
N
−
1
M
N
N
M
−
1
M
M
N
M + 1 M + 2
115
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