EZ80F91MCU ZILOG [Zilog, Inc.], EZ80F91MCU Datasheet - Page 191

• Manufacturer Part Number: EZ80F91MCU
• Description: eZ80Acclaim-TM Flash Microcontrollers
• Manufacturer: ZILOG [Zilog, Inc.]

PS019209-0504
Real-Time Clock Day-of-the-Month Register
This register contains the current day-of-the-month count. The RTC_DOM regis-
ter begins counting at
RESET. The current setting of BCD_EN determines whether the values in this
register are binary (BCD_EN = 0) or binary-coded decimal (BCD_EN = 1). Access
to this register is Read Only if the RTC is locked and Read/Write if the RTC is
unlocked. See Table 84.
Table 84. Real-Time Clock Day-of-the-Month Register
(RTC_DOM = 00E4h)
Bit
Reset
CPU Access
Note: X = Unchanged by RESET; R/W* = Read Only if RTC locked, Read/Write if RTC unlocked.
Binary-Coded-Decimal Operation (BCD_EN = 1)
Bit
Position
[7:4]
TENS_DOM
[3:0]
DOM
Binary Operation (BCD_EN = 0)
Bit
Position
[7:0]
DOM
Value Description
0–3
0–9
Value Description
01h–
1Fh
01h
R/W*
The tens digit of the current day-of-the-month count.
The ones digit of the current day-of-the-month count.
The current day-of-the-month count.
P R E L I M I N A R Y
X
7
. The value in the RTC_DOM register is unchanged by a
R/W*
6
X
R/W*
X
5
R/W*
X
4
R/W*
X
3
Product Specification
R/W*
X
2
eZ80F91 MCU
Real-Time Clock
R/W*
X
1
R/W*
X
0
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