Datasheet

Register Map
MC68HC812A4 Data Sheet, Rev. 7
Freescale Semiconductor 31
$0014
Real-Tme Interrupt Control
Register (RTICTL)
See page 105.
Read:
RTIE RSWAI RSBCK
0
RTBYP RTR2 RTR1 RTR0
Write:
Reset:00000000
$0015
Real-Time Interrupt Flag
Register (RTIFLG)
See page 107.
Read:
RTIF
0000000
Write:
Reset:00000000
$0016
COP Control Register
(COPCTL)
See page 107.
Read:
CME FCME FCM FCOP DISR CR2 CR1 CR0
Write:
Reset:00000111
$0017
Arm/Reset COP Register
(COPRST)
See page 109.
Read:00000000
Write:Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Reset:00000000
$0018 Reserved RRRRRRRR
↓↓
$001D Reserved RRRRRRRR
$001E
Interrupt Control Register
(INTCR)
See page 51.
Read:
IRQE IRQEN DLY
00000
Write:
Reset:01100000
$001F
Highest Priority I Interrupt
Register (HPRIO)
See page 51.
Read: 1 1
PSEL5 PSEL4 PSEL3 PSEL2 PSEL1
0
Write:
Reset:11110010
$0020
Port D Key Wakeup
Interrupt Enable Register
(KWIED) See page 94.
Read:
Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Write:
Reset:00000000
$0021
Port D Key Wakeup Flag
Register (KWIFD)
See page 95.
Read:
Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Write:
Reset:00000000
$0022 Reserved RRRRRRRR
$0023 Reserved RRRRRRRR
$0024
Port H Data Register
(PORTH)
See page 95.
Read:
PH7 PH6 PH5 PH4 PH3 PH2 PH1 PH0
Write:
Reset:00000000
$0025
Port H Data Direction
Register (DDRH)
See page 96.
Read:
Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Write:
Reset:00000000
Addr.Register Name Bit 7654321Bit 0
= Unimplemented
R
= Reserved U = Unaffected
Figure 2-1. Register Map (Sheet 3 of 14)