s908qy2ad1vdwer Freescale Semiconductor, Inc, s908qy2ad1vdwer Datasheet - Page 23

• Manufacturer Part Number: s908qy2ad1vdwer
• Description: Mc68hc908qt4a Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
$000C
$000D
$001C
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$000A
$000B
$0019
$001A
$001B
Addr.
↓
↓
↓
Keyboard Interrupt Polarity
Port A Input Pullup Enable
Port B Input Pullup Enable
Control Register (KBSCR)
Data Direction Register A
Data Direction Register B
Enable Register (KBIER)
Register Name
Keyboard Status and
Port A Data Register
Port B Data Register
Register (PTAPUE)
Register (PTBPUE)
Keyboard Interrupt
Register (KBIPR)
See page 104.
See page 106.
See page 104.
See page 107.
See page 105.
See page 108.
See page 87.
See page 88.
See page 88.
Reserved
Reserved
Reserved
Figure 2-2. Control, Status, and Data Registers (Sheet 1 of 5)
(DDRA)
(DDRB)
(PTA)
(PTB)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
MC68HC908QYA/QTA Family Data Sheet, Rev. 2
PTBPUE7
OSC2EN
DDRB7
PTB7
Bit 7
R
R
0
0
0
0
0
0
0
0
0
0
= Unimplemented
PTBPUE6
DDRB6
AWUIE
AWUL
PTB6
R
6
0
0
0
0
0
0
0
0
0
0
PTAPUE5
PTBPUE5
DDRA5
DDRB5
KBIE5
KBIP5
PTA5
PTB5
0
5
0
0
0
0
0
0
0
PTAPUE4
PTBPUE4
DDRA4
DDRB4
Unaffected by reset
Unaffected by reset
KBIE4
KBIP4
PTA4
PTB4
R
4
0
0
0
0
0
0
0
0
= Reserved
PTAPUE3
PTBPUE3
DDRA3
DDRB3
KBIE3
KBIP3
KEYF
PTA3
PTB3
3
0
0
0
0
0
0
0
PTAPUE2
PTBPUE2
DDRB2
KBIE2
KBIP2
ACKK
PTA2
PTB2
U = Unaffected
2
0
0
0
0
0
0
0
0
0
Direct Page Registers
PTAPUE1
PTBPUE1
IMASKK
DDRA1
DDRB1
KBIE1
KBIP1
PTA1
PTB1
1
0
0
0
0
0
0
0
PTAPUE0
PTBPUE0
MODEK
DDRA0
DDRB0
KBIE0
KBIP0
PTA0
PTB0
Bit 0
0
0
0
0
0
0
0
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