UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 181

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

Address: FFBDH
Symbol
TOC00
The value of this bit is always “0” when it is read. Do not set this bit to 1 in a mode other than the one-
shot pulse output mode.
If it is set to 1, TM00 is cleared and started.
One-shot pulse output operates correctly in the free-running timer mode or clear & start mode entered by
TI000 pin valid edge input.
The one-shot pulse cannot be output in the clear & start mode entered upon a match between TM00 and
CR000.
The interrupt signal (INTTM010) is generated even when TOC004 = 0.
• LVS00 and LVR00 can be used to set the initial value of the output level of the TO00 pin. If the initial
• Be sure to set LVS00 and LVR00 when TOE00 = 1.
• LVS00 and LVR00 are trigger bits. By setting these bits to 1, the initial value of the output level of the
The interrupt signal (INTTM000) is generated even when TOC001 = 0.
• The values of LVS00 and LVR00 are always 0 when they are read.
• For how to set LVS00 and LVR00, see 7.5.2 Setting LVS0n and LVR0n.
OSPT00
OSPE00
TOC004
TOC001
TOE00
LVS00
value does not have to be set, leave LVS00 and LVR00 as 00.
LVS00, LVR00, and TOE00 being simultaneously set to 1 is prohibited.
TO00 pin can be set. Even if these bits are cleared to 0, output of the TO00 pin is not affected.
Figure 7-17. Format of 16-Bit Timer Output Control Register 00 (TOC00)
7
0
0
1
0
1
0
1
0
0
1
1
0
1
0
1
After reset: 00H
One-shot pulse output
Successive pulse output
One-shot pulse output
Disables inversion operation
Enables inversion operation
Disables inversion operation
Enables inversion operation
Disables output (TO00 pin output fixed to low level)
Enables output
CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 TO 03
OSPT00
LVR00
<6>
0
1
0
1
R/W
No change
Initial value of TO00 pin output is low level (TO00 pin output is cleared to 0).
Initial value of TO00 pin output is high level (TO00 pin output is set to 1).
Setting prohibited
OSPE00
TO00 pin output control on match between CR010 and TM00
TO00 pin output control on match between CR000 and TM00
<5>
User’s Manual U17554EJ4V0UD
One-shot pulse output trigger via software
One-shot pulse output operation control
TOC004
4
TO00 pin output control
Setting of TO00 pin output status
LVS00
<3>
−
LVR00
<2>
TOC001
1
TOE00
<0>
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