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Setting – FUJITSU MB91460 SERIES FR60 User Manual

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Chapter 49 Real-Time Clock

6.Setting

6. Setting

*: For the setting procedure, refer to the section indicated by the number.

*: For the setting procedure, refer to the section indicated by the number.

*: For the setting procedure, refer to the section indicated by the number.

*: For the setting procedure, refer to the section indicated by the number.

*: For the setting procedure, refer to the section indicated by the number.

Table 6-1 Required Settings to Run Real-time Clock

Setting

Setting Registers

Setting

Procedure *

Set a reload value to the sub-second registers.

Sub-second registers
(WTBR0,WTBR1 and WTBR2)

See 7.1.

Initialize Real-time Clock.

RTC control register (WTCR)

See 7.2.

Set time (hour/minute/second).

Hour/minute/second registers
(WTHR/WTMR/WTSR)

See 7.3.

Activate Real-time Clock.

RTC control register (WTCR)

See 7.4.

Table 6-2 Required Settings to Know Time

Setting

Setting Registers

Setting

Procedure *

Read time.

Hour/minute/second registers
(WTHR/WTMR/WTSR)

See 7.6.

Table 6-3 Required Settings to Stop Real-Time Clock

Setting

Setting Registers

Setting

Procedure *

Stop Real-time Clock.

RTC control register (WTCR)

See 7.7.

Table 6-4 Required Settings to Generate Interrupts to Real-time Clock

Setting

Setting Registers

Setting

Procedure *

Set a RTC interrupt vector and RTC interrupt level.

See “

Chapter 24 Interrupt Control (Page

No.311)

”.

See 7.10.

Enable RTC interrupts.
Clear interrupt requests.
Enable interrupt requests.

RTC control register (WTCR)

See 7.10.

Table 6-5 Required Settings to select clock source to Real-time Clock

Setting

Setting Registers

Setting

Procedure *

Set a RTC clock source.

See “

4.4 CSCFG: Clock Source Configuration

Register (Page No.196)

”.