Datasheet

Memory
MC68HC908GR16 Data Sheet, Rev. 5.0
32 Freescale Semiconductor
$001E
Configuration Register 2
(CONFIG2)
(1)
See page 80.
Read: 0000
R
TMBCLK-
SEL
OSCENIN-
STOP
ESCIBD-
SRC
Write:
Reset:00000001
$001F
Configuration Register 1
(CONFIG1)
(1)
See page 80.
Read:
COPRS LVISTOP LVIRSTD LVIPWRD
LVI5OR3
(Note 1)
SSREC STOP COPD
Write:
Reset:00000000
1.
One-time writable register after each reset, except LVI5OR3 bit. LVI5OR3 bit is only reset via POR (power-on reset).
$0020
Timer 1 Status and Control
Register (T1SC)
See page 231.
Read: TOF
TOIE TSTOP
00
PS2 PS1 PS0
Write: 0 TRST
Reset:00100000
$0021
Timer 1 Counter
Register High (T1CNTH)
See page 232.
Read: Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset:00000000
$0022
Timer 1 Counter
Register Low (T1CNTL)
See page 232.
Read: Bit 7 654321Bit 0
Write:
Reset:00000000
$0023
Timer 1 Counter Modulo
Register High (T1MODH)
See page 233.
Read:
Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset:11111111
$0024
Timer 1 Counter Modulo
Register Low (T1MODL)
See page 233.
Read:
Bit 7654321Bit 0
Write:
Reset:11111111
$0025
Timer 1 Channel 0 Status and
Control Register (T1SC0)
See page 233.
Read: CH0F
CH0IE MS0B MS0A ELS0B ELS0A TOV0 CH0MAX
Write: 0
Reset:00000000
$0026
Timer 1 Channel 0
Register High (T1CH0H)
See page 236.
Read:
Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset: Indeterminate after reset
$0027
Timer 1 Channel 0
Register Low (T1CH0L)
See page 236.
Read:
Bit 7654321Bit 0
Write:
Reset: Indeterminate after reset
$0028
Timer 1 Channel 1 Status and
Control Register (T1SC1)
See page 234.
Read: CH1F
CH1IE
0
MS1A ELS1B ELS1A TOV1 CH1MAX
Write: 0
Reset:00000000
Addr.Register Name Bit 7654321Bit 0
= Unimplemented R = Reserved U = Unaffected
Figure 2-2. Control, Status, and Data Registers (Sheet 4 of 8)