Panasonic F77G, MN101C77C user manual „Oscillation Stabilization Wait Time Control Register

Models: F77G MN101C77C

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BUZS2 BUZS1 BUZS0
fs/22
Reserved

„Oscillation Stabilization Wait Time Control Register

7

6

5

4

3

2

1

0

DLYCTR

BUZOE

BUZS2

BUZS1

BUZS0

DLYS2

DLYS1

DLYS0

-

 

 

 

 

 

 

 

 

 

Chapter 2 CPU Basics

(At reset: 0 0 0 0 0 0 0 -)

DLYS2 DLYS1 DLYS0 Oscillation stabilization wait period selection

 

0

0

fs/214

0

1

fs/212

 

1

0

fs/210

 

 

1

fs/28

 

 

 

0

0

fs/26

1

1

fs/24

 

1

0

1

Note : After reset is released, the oscillation stabilization wait period is fixed at fs/214.

Buzzer output frequency selection

0

0

fosc/214

1

fosc/213

0

 

 

0

fosc/212

1

1

fosc/211

 

 

0

0

fosc/210

1

fosc/29

1

 

 

0

fx/24

1

1

fx/23

 

 

 

 

BUZOE

P06 output selection

0P06 port data output

1P06 buzzer output

Figure 2-8-4 Oscillation Stabilization Wait Time Control Register (DLYCTR : x'03F4D', R/W)

„Control the Oscillation Stabilization Wait Time

At recovering from STOP mode, the bit 3-2 (DLYS1, DLYS0) of the oscillation stabilization wait time control register can be set to select the oscillation stabilization wait time from 214, 210, 26, 22 x system clock. The DLYCTR register is also used for controlling of buzzer functions.

[ Chapter 10 Buzzer ]

At releasing from reset, the oscillation stabilization wait time is fixed to "214 x system clock". System clock is determined by the CPU mode control register (CPUM).

Reset II - 41

Page 93
Image 93
Panasonic F77G, MN101C77C user manual „Oscillation Stabilization Wait Time Control Register