H8SSLASH2218 datasheet(400/750 Pages) RENESAS

400 / 750 page

Section 11 Realtime Clock (RTC)

Rev.6.00 Jun. 03, 2008 Page 352 of 698

REJ09B0074-0600

11.3.3

Hour Data Register (RHRDR)

RHRDR counts the BCD-coded hour value on the carry generated once per hour by RMINDR.

This register is initialized to H'00 by a

STBY input or the RST bit in RTCCR1, but not initialized

by a

RES input. The setting range is either decimal 0 to 11 or 0 to 23 by the selection of the 12/24

bit in RTCCR1.

Bit

Bit Name

Initial Value* R/W

Description

BSY

—

RTC Busy

This bit is set to 1 when the RTC is updating (operating)

the values of second, minute, hour, and day-of-week data

registers. When this bit is 0, the values of second, minute,

hour, and day-of-week data registers must be adopted.

—

Reserved

This bit is always read as 0.

HR11

HR10

—

R/W

Counting Ten’s Position of Hours

Counts on 0 to 2 for ten’s position of hours.

HR03

HR02

HR01

HR00

—

R/W

Counting One’s Position of Hours

Counts on 0 to 9 once per hour. When a carry is

generated, 1 is added to the ten’s position.

Note: * Initial value after

RES.

H8S/2218 数据表(PDF) 400 Page - Renesas Technology Corp

H8S/2218 数据表(HTML) 400 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

数据表下载