Motorola MC68HC908AB32 User Manual

Memory Map
Input/Output (I/O) Section
MC68HC908AB32 — Rev. 1.0 Technical Data
MOTOROLA Memory Map 47
$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 R R ORIE NEIE FEIE PEIE
Write:
Reset:
Unaffected Unaffected
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: Unaffected by reset
$0019
SCI Baud Rate Register
(SCBR)
Read: 0 0
SCP1 SCP0 R SCR2 SCR1 SCR0
Write:
Reset: 00000000
$001A
IRQ Status and Control
Register
(ISCR)
Read: 0000IRQF 0
IMASK MODE
Write: ACK
Reset: 00000000
$001B
Keyboard Status and
Control Register
(KBSCR)
Read: 0000KEYF 0
IMASKK MODEK
Write: ACKK
Reset: 00000000
$001C
PLL Control Register
(PCTL)
Read:
PLLIE
PLLF
PLLON BCS
1111
Write:
Reset: 00101111
$001D
PLL Bandwidth Control
Register
(PBWC)
Read:
AUTO
LOCK
ACQ XLD
0000
Write:
Reset: 00000000
Addr. Register Name Bit 7 654321Bit 0
= Unimplemented R = Reserved
Figure 2-2. Control, Status, and Data Registers (Sheet 3 of 11)

Motorola MC68HC908AB32 Specifications

General

Brand	Motorola
Model	MC68HC908AB32
Category	Controller
Language	English