UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 139
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
Available stocks
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Part Number:
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Quantity:
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Company:
Part Number:
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Quantity:
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(2) Timing chart
8-bit timer counter H1
<1> The count operation is enabled by setting the TMHE1 bit to 1. The count clock starts counting no more than
<2> When the values of 8-bit timer counter H1 and the CMP01 register match, the value of 8-bit timer counter H1
<3> The INTTMH1 signal and TOH1 output become inactive by clearing the TMHE1 bit to 0 during timer H1
Remark 01H ≤ N ≤ FEH
The timing of the interval timer/square-wave output operation is shown below.
Count clock
1 clock after the operation is enabled.
is cleared, the TOH1 output level is inverted, and the INTTMH1 signal is output.
operation. If these are inactive from the first, the level is retained.
INTTMH1
CMP01
TMHE1
TOH1
Figure 8-7. Timing of Interval Timer/Square-Wave Output Operation (1/2)
<1>
00H
Count start
01H
(a) Basic operation (01H ≤ CMP01 ≤ FEH)
CHAPTER 8 8-BIT TIMER H1
User’s Manual U16898EJ5V0UD
match interrupt occurrence,
8-bit timer counter H1 clear
Level inversion,
N
N
<2>
Clear
00H
01H
Interval time
match interrupt occurrence,
8-bit timer counter H1 clear
Level inversion,
N
<2>
Clear
00H
01H 00H
<3>
139
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