
aPPendix a i/o MaP
s1C33L17 teChniCaL ManuaL
ePson
aP-a-71
AP
I/Omap
0x301900–0x301924
Real time Clock
name
address
Register name
Bit
Function
setting
init. R/W
Remarks
–
RtCiRQ
D31–1
D0
reserved
Interrupt status
–
X
–
R/W
0 when being read.
Reset by writing 1.
00301900
(W)
RtC interrupt
status register
(pRTCINTSTAT)
–
1 Occurred
0 Not occurred
–
RtCt1
RtCt0
RtCiMd
RtCien
D31–4
D3
D2
D1
D0
reserved
RTC interrupt cycle setup
RTC interrupt mode select
RTC interrupt enable
–
X
–
R/W
0 when being read.
00301904
(W)
RtC interrupt
mode register
(pRTCINTMODE)
–
1 Level sense 0 Edge trigger
1 Enabled
0 Disabled
11
10
01
00
RTCT[1:0]
Cycle
1 hour
1 minute
1 second
1/64 second
–
RtC24h
–
RtCadJ
RtCstP
RtCRst
D31–5
D4
D3
D2
D1
D0
reserved
24H/12H mode select
reserved
30-second adjustment
Counter run/stop control
Software reset
–
X
–
X
–
R/W
–
R/W
0 when being read.
00301908
(W)
RtC control
register
(pRTC_CNTL0)
–
1 24H
0 12H
1 Stop
0 Run
1 Adjust
0 –
1 Reset
0 –
–
RtCBsY
RtChLd
D31–2
D1
D0
reserved
Counter busy flag
Counter hold control
–
X
–
R
R/W
0 when being read.
0030190C
(W)
RtC access
control register
(pRTC_CNTL1)
–
1 Busy
0 R/W possible
1 Hold
0 Running
–
RtCsh2
RtCsh1
RtCsh0
RtCsL3
RtCsL2
RtCsL1
RtCsL0
D31–7
D6
D5
D4
D3
D2
D1
D0
reserved
RTC 10-second counter
RTC 1-second counter
–
X
–
R/W
0 when being read.
00301910
(W)
RtC second
register
(pRTCSEC)
0 to 5
–
0 to 9
–
RtCMih2
RtCMih1
RtCMih0
RtCMiL3
RtCMiL2
RtCMiL1
RtCMiL0
D31–7
D6
D5
D4
D3
D2
D1
D0
reserved
RTC 10-minute counter
RTC 1-minute counter
–
X
–
R/W
0 when being read.
00301914
(W)
RtC minute
register
(pRTCMIN)
0 to 5
–
0 to 9
–
RtCaP
RtChh1
RtChh0
RtChL3
RtChL2
RtChL1
RtChL0
D31–7
D6
D5
D4
D3
D2
D1
D0
reserved
AM/PM indicator
RTC 10-hour counter
RTC 1-hour counter
–
X
–
R/W
0 when being read.
00301918
(W)
RtC hour
register
(pRTCHOUR)
0 to 2 or 0 to 1
–
1 PM
0 AM
0 to 9
–
RtCdh1
RtCdh0
RtCdL3
RtCdL2
RtCdL1
RtCdL0
D31–6
D5
D4
D3
D2
D1
D0
reserved
RTC 10-day counter
RTC 1-day counter
–
X
–
R/W
0 when being read.
0030191C
(W)
RtC day
register
(pRTCDAY)
0 to 3
–
0 to 9
–
RtCMoh
RtCMoL3
RtCMoL2
RtCMoL1
RtCMoL0
D31–5
D4
D3
D2
D1
D0
reserved
RTC 10-month counter
RTC 1-month counter
–
X
–
R/W
0 when being read.
00301920
(W)
RtC month
register
(pRTCMONTH)
0 or 1
–
0 to 9
–
RtCYh3
RtCYh2
RtCYh1
RtCYh0
RtCYL3
RtCYL2
RtCYL1
RtCYL0
D31–8
D7
D6
D5
D4
D3
D2
D1
D0
reserved
RTC 10-year counter
RTC 1-year counter
–
X
–
R/W
0 when being read.
00301924
(W)
RtC year
register
(pRTCYEAR)
0 to 9
–
0 to 9