MC68HC908RK2 Datasheet, PDF (24/158 Pages) Motorola, Inc – Microcontroller Unit

Memory
Addr. Register Name
Bit 7
$001A
IRQ and Keyboard Status Read: IRQF
and Control Register
(INTKBSCR)
Write:
R
See page 90. Reset: 0
Keyboard Interrupt Enable ^Read:
0
$001B
Register (INTKBIER) Write:
See page 91. _Reset:
0
$001C
↓
$001E
Unimplemented
6
5
4
0
IMASKI MODEI
ACKI
0
0
0
KBIE6 KBIE5 KBIE4
0
0
0
3
KEYF
R
0
KBIE3
0
2
0
ACKK
0
KBIE2
1
Bit 0
IMASKK MODEK
0
0
0
KBIE1
0
0
0
$001F
Read:
Configuration Register
EXTSLOW
(CONFIG) Write:
See page 41. _Reset:
0
LVISTOP
0
LVIRST
1
LVIPWR
1
COPRS
0
SSREC
0
STOP
0
COPD
0
Timer Status and Control ^{Read: TOF}
TOIE TSTOP
0
0
$0020
Register (TSC) Write: 0
TRST
See page 128. _Reset:
0
0
1
0
0
PS2
PS1
PS0
0
0
0
Timer Counter Register High ^{Read: Bit 15}
14
13
12
11
10
$0021
(TCNTH) Write:
See page 129.
Reset: 0
0
0
0
0
0
9
Bit 8
0
0
Read: Bit 7
6
5
4
3
2
1
Bit 0
Timer Counter Register Low
$0022
(TCNTL) Write:
See page 129. _Reset:
0
0
0
0
0
0
0
0
Timer Counter Modulo ^Read: _{Bit 15}
14
13
12
11
10
$0023
Register High (TMODH) Write:
See page 130. _Reset:
1
1
1
1
1
1
9
Bit 8
1
1
Timer Counter Modulo ^Read: _{Bit 7}
6
5
4
3
2
1
Bit 0
$0024
Register Low (TMODL) Write:
See page 130.
Reset: 1
1
1
1
1
1
1
1
$0025
Timer Channel 0 Status and ^Read:
Control Register (TSC0) Write:
See page 131. _Reset:
CH0F
0
0
CH0IE
0
MS0B
0
MS0A
0
ELS0B ELS0A
0
0
TOV0 CH0MAX
0
0
Timer Channel 0 Register ^Read: _{Bit 15}
14
$0026
High (TCH0H) Write:
See page 134. _Reset:
13
12
11
10
Indeterminate after reset
9
Bit 8
= Unimplemented
R = Reserved U = Unaffected X = Indeterminate
Figure 2-2. Control, Status, and Data Registers (Sheet 2 of 5)
MC68HC908RK2 Data Sheet, Rev. 5.1
24
Freescale Semiconductor