Square-Wave Output Operation Timing - NEC 78K0 User Manual

CHAPTER 7 16-BIT TIMER/EVENT COUNTERS 00 AND 01
Figure 7-34. Control Register Settings in Square-Wave Output Mode (2/2)
7 OSPT0n OSPE0n TOC0n4
TOC0n 0 0 0
ES1n1 ES1n0 ES0n1
PRM0n 0/1 0/1 0/1
Remark 0/1: Setting 0 or 1 allows another function to be used simultaneously with square-wave output. See the
description of the respective control registers for details.
µ
n = 0: PD780143, 780144
µ
n = 0, 1: PD780146, 780148, 78F0148
Count clock
TM0n count value 0000H 0001H 0002H
CR00n
INTTM00n
TO0n pin output
µ
Remark n = 0: PD780143, 780144
µ
n = 0, 1: PD780146, 780148, 78F0148
(c) 16-bit timer output control register 0n (TOC0n)
LVS0n LVR0n TOC0n1 TOE0n
0 0/1 0/1 1 1
(d) Prescaler mode register 0n (PRM0n)
ES0n0 3 2 PRM0n1 PRM0n0
0/1 0 0 0/1
*
Figure 7-35. Square-Wave Output Operation Timing
N − 1
N
User's Manual U15947EJ2V0UD
Enables TO0n output.
Inverts output on match between TM0n and CR00n.
Specifies initial value of TO0n output F/F (setting "11" is prohibited).
Does not invert output on match between TM0n and CR01n.
Disables one-shot pulse output.
0/1
Selects count clock.
Setting invalid (setting "10" is prohibited.)
Setting invalid (setting "10" is prohibited.)
N 0000H 0001H 0002H
N − 1
N 0000H
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