MC68HC908GR16A Datasheet, PDF (31/270 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

Input/Output (I/O) Section
Addr.
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
$0018
ESCI Data Register ^{Read: R7}
R6
R5
R4
R3
R2
R1
R0
(SCDR) Write: T7
T6
T5
T4
T3
T2
T1
T0
See page 164. _Reset:
Unaffected by reset
ESCI Baud Rate Register ^Read: _LINT
LINR
SCP1
SCP0
R
SCR2
SCR1
SCR0
$0019
(SCBR) Write:
See page 165. _Reset:
0
0
0
0
0
0
0
0
$001A
$001B
$001C
$001D
$001E
Keyboard Status Read:
and Control Register _Write:
(INTKBSCR)
See page 103. ^Reset:
Keyboard Interrupt Enable ^Read:
Register (INTKBIER) Write:
See page 104. _Reset:
Timebase Module Control ^Read:
Register (TBCR) Write:
See page 214. _Reset:
IRQ Status and Control ^Read:
Register (INTSCR) Write:
See page 98. _Reset:
Configuration Register 2 Read:
(CONFIG2)⁽¹⁾ _Write:
See page 75.
Reset:
0
0
KBIE7
0
TBIF
0
0
0
0
0
0
0
KBIE6
0
TBR2
0
0
0
0
0
0
0
KBIE5
0
TBR1
0
0
0
0
0
0
0
KBIE4
0
TBR0
0
0
0
0
0
KEYF
0
0
ACKK
0
IMASKK MODEK
0
0
KBIE3 KBIE2 KBIE1 KBIE0
0
0
TACK
0
IRQF
0
R
0
0
0
0
TBIE
TBON
R
0
0
0
0
IMASK MODE
ACK
0
0
0
TBMCLK- OSCENIN- ESCIBD-
SEL
STOP
SRC
0
0
1
$001F
Configuration Register 1 ^Read:
(CONFIG1)⁽¹⁾ Write:
See page 76. _Reset:
COPRS
0
LVISTOP
0
LVIRSTD
0
LVIPWRD
0
LVI5OR3
(Note 1)
0
SSREC
0
STOP
0
COPD
0
1. One-time writable register after each reset, except LVI5OR3 bit. LVI5OR3 bit is only reset via POR (power-on reset).
Timer 1 Status and Control ^{Read: TOF}
TOIE TSTOP
0
0
$0020
Register (T1SC) Write: 0
TRST
See page 225. _Reset:
0
0
1
0
0
Timer 1 Counter ^{Read: Bit 15}
14
13
12
11
$0021 Register High (T1CNTH) Write:
See page 226. _Reset:
0
0
0
0
0
Timer 1 Counter ^{Read: Bit 7}
6
5
4
3
$0022 Register Low (T1CNTL) Write:
See page 226. _Reset:
0
0
0
0
0
Timer 1 Counter Modulo ^Read: _{Bit 15}
14
13
12
11
$0023 Register High (T1MODH) Write:
See page 227. _Reset:
1
1
1
1
1
PS2
PS1
PS0
0
0
0
10
9
Bit 8
0
0
0
2
1
Bit 0
0
0
0
10
9
Bit 8
1
1
1
= Unimplemented
R = Reserved
U = Unaffected
Figure 2-2. Control, Status, and Data Registers (Sheet 3 of 7)
MC68HC908GR16A Data Sheet, Rev. 1.0
Freescale Semiconductor
31