UPD78F9418AGK-9EU Renesas Electronics America, UPD78F9418AGK-9EU Datasheet - Page 115

• Manufacturer Part Number: UPD78F9418AGK-9EU
• Manufacturer: Renesas Electronics America

Specifications of UPD78F9418AGK-9EU

• Lead Free Status / Rohs Status: Supplier Unconfirmed

<Countermeasure B> When rewriting using 16-bit access
<1> Disable interrupts (TMMK50 = 1) and the inversion control of timer output (TOC50 = 0).
<2> Rewrite CR50 (16 bits).
<3> Wait for one cycle or more of the count clock.
<4> Clear the interrupt request flag (TMIF50).
<5> Enable timer interrupts/timer output inversion.
<Program example B> (count clock = 32/f
TM50_VCT
Note Clear the interrupt request flag (TMIF50) after waiting for one cycle or more of the count clock from the
instruction rewriting CR50 (MOVW CR50, AX).
SET1 TMMK50
CLR1 TMC50.3
MOVW AX,#xxyyH ; Set the rewrite value of CR50
MOVW CR50,AX
NOP
NOP
NOP
NOP
CLR1 TMIF50
CLR1 TMMK50
SET1 TMC50.3
:
; Disable timer interrupts
; Disable timer output inversion
; Rewrite CR50
; 16 NOP instructions (wait for 32/f
; Clear interrupt request flag
; Enable timer interrupts
; Enable timer output inversion
CHAPTER 6 16-BIT TIMER 50
User’s Manual U13952EJ3V1UD
X
, CPU clock = f
X
)
X
)
Note
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