Setting Of Control Registers For Ppg Output Operation - NEC PD78212 User Manual

8-bit single-chip microcomputer sub-series

Table of Contents

µ PD78214 Sub-Series

Fig. 7-112 Setting of Control Registers for PPG Output Operation

(a) Timer control register 1 (TMC1)

(b) Prescaler mode register 1 (PRM1)

PRS22 PRS21 PRS20

(d) Timer output control register (TOC)

(e) Port 3 mode control register (PMC3)

Overflow flag

Enables counting for TM2

Specifies count clock

Clears when TM2 coincides with CR21

Disables clearing when TM2 is captured

by CR22 register

TO2 is used for PPG output

TO2 for high-active PWM signal output

Enables PPG output for TO2

Specifies P36 pin as TO2 output

; where x = 16, 32, 64, 128, 256 or 512)