Datasheet

Memory Map
Technical Data MC68HC908LJ12 — Rev. 2.1
48 Memory Map Freescale Semiconductor
$0014
SCI Control Register 2
(SCC2)
Read:
SCTIE TCIE SCRIE ILIE TE RE RWU SBK
Write:
Reset:00000000
$0015
SCI Control Register 3
(SCC3)
Read: R8
T8 DMARE DMATE ORIE NEIE FEIE PEIE
Write:
Reset:
UU
000000
$0016
SCI Status Register 1
(SCS1)
Read: SCTE TC SCRF IDLE OR NF FE PE
Write:
Reset:11000000
$0017
SCI Status Register 2
(SCS2)
Read: 000000BKFRPF
Write:
Reset:00000000
$0018
SCI Data Register
(SCDR)
Read: R7 R6 R5 R4 R3 R2 R1 R0
Write: T7 T6 T5 T4 T3 T2 T1 T0
Reset:
UUUUUUUU
$0019
SCI Baud Rate Register
(SCBR)
Read:
CKS
0
SCP1 SCP0 R SCR2 SCR1 SCR0
Write:
Reset:00000000
$001A
SCI Infrared Control
Register
(SCIRCR)
Read:
R
000
R TNP1 TNP0 IREN
Write:
Reset:00000000
$001B
Keyboard Status and
Control Register
(KBSCR)
Read: 0000KEYF 0
IMASKK MODEK
Write:
ACKK
Reset:00000000
$001C
Keyboard Interrupt
Enable Register
(KBIER)
Read:
KBIE7 KBIE6 KBIE5 KBIE4 KBIE3 KBIE2 KBIE1 KBIE0
Write:
Reset:00000000
$001D
Configuration Register 2
(CONFIG2)
†
Read: 0
STOP_
IRCDIS
STOP_
XCLKEN
DIV2CLK PCEH PCEL LVISEL1 LVISEL0
Write:
Reset:0000000
††
0
††
Addr.Register Name Bit 7654321Bit 0
U = Unaffected X = Indeterminate
= Unimplemented R = Reserved
Figure 2-2. Control, Status, and Data Registers (Sheet 3 of 12)