NEC 78K0S/KU1+ User Manual page 89

(3) 16-bit timer output control register 00 (TOC00)
This register controls the operation of the 16-bit timer/event counter output controller. It sets timer output F/F
set/reset, output inversion enable/disable, 16-bit timer/event counter 00 timer output enable/disable, one-shot
pulse output operation enable/disable, and output trigger of one-shot pulse by software.
TOC00 is set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets the value of TOC00 to 00H.
Figure 6-7. Format of 16-Bit Timer Output Control Register 00 (TOC00)
Address: FF63H After reset: 00H
Symbol 7
TOC00 0
OSPT00
0 No one-shot pulse output trigger
1 One-shot pulse output trigger
OSPE00
0 Successive pulse output mode
1 One-shot pulse output mode
TOC004
0 Disables inversion operation
1 Enables inversion operation
LVS00
0
0
1
1
TOC001
0 Disables inversion operation
1 Enables inversion operation
TOE00
0 Disables output (output fixed to level 0)
1 Enables output
Note The one-shot pulse output mode operates correctly only in the free-running mode and the mode in which
clear & start occurs at the TI000 pin valid edge. In the mode in which clear & start occurs on a match
between TM00 and CR000, one-shot pulse output is not possible because an overflow does not occur.
Cautions 1. Timer operation must be stopped before setting other than OSPT00.
2. If LVS00 and LVR00 are read, 0 is read.
3. OSPT00 is automatically cleared after data is set, so 0 is read.
4. Do not set OSPT00 to 1 other than in one-shot pulse output mode.
5. A write interval of two cycles or more of the count clock selected by prescaler mode register
00 (PRM00) is required, when OSPT00 is set to 1 successively.
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
R/W
<6> <5>
OSPT00 OSPE00 TOC004
One-shot pulse output trigger control via software
One-shot pulse output operation control
Note
Timer output F/F control using match of CR010 and TM00
LVR00
0 No change
1 Timer output F/F reset (0)
0 Timer output F/F set (1)
1 Setting prohibited
Timer output F/F control using match of CR000 and TM00
User's Manual U18172EJ2V0UD
4 <3> <2>
LVS00 LVR00
Timer output F/F status setting
Timer output control
1 <0>
TOC001 TOE00
89