ez80f91 ZiLOG Semiconductor, ez80f91 Datasheet - Page 177

• Manufacturer Part Number: ez80f91
• Description: Ez80 Acclaimplus!? Connectivity Assp Ez80f91 Assp
• Manufacturer: ZiLOG Semiconductor

Table 88. Real-Time Clock Alarm Seconds Register
PS027001-0707
Bit
Reset
CPU Access
Note: X = Unchanged by RESET; R/W = Read/Write.
Binary-Coded Decimal Operation (BCD_EN = 1)
Bit Position
[7:4]
ATEN_SEC
[3:0]
ASEC
Binary Operation (BCD_EN = 0)
Bit Position
[7:0]
ASEC
Real-Time Clock Alarm Seconds Register
This register contains the alarm seconds value. The value in the RTC_ASEC register is
unchanged by a 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). See
Table
Value
00h–3Bh The alarm seconds value.
Value Description
0–5
0–9
88.
R/W
The tens digit of the alarm seconds value.
The ones digit of the alarm seconds value.
X
7
Description
R/W
X
6
R/W
X
5
R/W
X
4
R/W
X
(RTC_ASEC = 00E8h)
3
R/W
X
2
R/W
X
1
Product Specification
R/W
X
0
eZ80F91 ASSP
Real-Time Clock
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