SH7708 datasheet(340/633 Pages) RENESAS

340 / 633 page

322

12.1.4

RTC Register Configuration

Table 12.2 shows the RTC register configuration.

Table 12.2

RTC Registers

Name

Abbreviation R/W

Initial Value

Address

Access Size

64-Hz counter

R64CNT

Undefined

H'FFFFFEC0

Second counter

RSECCNT

R/W

Undefined

H'FFFFFEC2

Minute counter

RMINCNT

R/W

Undefined

H'FFFFFEC4

Hour counter

RHRCNT

R/W

Undefined

H'FFFFFEC6

Day of week counter

RWKCNT

R/W

Undefined

H'FFFFFEC8

Date counter

RDAYCNT

R/W

Undefined

H'FFFFFECA

Month counter

RMONCNT

R/W

Undefined

H'FFFFFECC

Year counter

RYRCNT

R/W

Undefined

H'FFFFFECE

Second alarm register

RSECAR

R/W

Undefined*

H'FFFFFED0

Minute alarm register

RMINAR

R/W

Undefined*

H'FFFFFED2

Hour alarm register

RHRAR

R/W

Undefined*

H'FFFFFED4

Day of week alarm register

RWKAR

R/W

Undefined*

H'FFFFFED6

Date alarm register

RDAYAR

R/W

Undefined*

H'FFFFFED8

Month alarm register

RMONAR

R/W

Undefined*

H'FFFFFEDA

RTC control register 1

RCR1

R/W

H'00

H'FFFFFEDC

RTC control register 2

RCR2

R/W

H'09

H'FFFFFEDE

Note:

Only the ENB bits of each register are initialized.

12.2

RTC Registers

12.2.1

64-Hz Counter (R64CNT)

The 64-Hz counter (R64CNT) is an 8-bit read-only register that indicates the status of the RTC

divider circuit between 64 Hz and 1 Hz.

R64CNT is reset to H'00 by setting the RESET bit in RTC control register 2 (RCR2) or the ADJ

bit in RCR2 to 1.

SH7708 Datasheet(PDF) 340 Page - Renesas Technology Corp

SH7708 Datasheet(HTML) 340 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Descarga

Enlace URL