ez80f91 ZiLOG Semiconductor, ez80f91 Datasheet - Page 171

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

Table 82. Real-Time Clock Hours Register
PS027001-0707
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]
TEN_HRS
[3:0]
HRS
Binary Operation (BCD_EN = 0)
Bit Position
[7:0]
HRS
Real-Time Clock Hours Register
This register contains the current hours count. The value in the RTC_HRS 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).
Access to this register is Read Only if the RTC is locked, and Read/Write if the RTC is
unlocked. See
Value Description
0–2
0–9
Value
00h–17h The current hours count.
R/W*
The tens digit of the current hours count.
The ones digit of the current hours count.
X
7
Description
Table
R/W*
X
6
82.
R/W*
X
5
(RTC_HRS = 00E2h)
R/W*
X
4
R/W*
X
3
R/W*
X
2
R/W*
X
1
Product Specification
R/W*
X
0
eZ80F91 ASSP
Real-Time Clock
163