Motorola MC68HC908AB32 User Manual

Memory Map
Input/Output (I/O) Section
MC68HC908AB32 — Rev. 1.0 Technical Data
MOTOROLA Memory Map 51
$003C Reserved
Read:
RRRRRRRR
Write:
Reset:
$003D
Port D Input Pullup Enable
Register
(PTDPUE)
Read:
PTDPUE7 PTDPUE6 PTDPUE5 PTDPUE4 PTDPUE3 PTDPUE2 PTDPUE1 PTDPUE0
Write:
Reset: 00000000
$003E
Port F Input Pullup Enable
Register
(PTFPUE)
Read:
PTFPUE7 PTFPUE6 PTFPUE5 PTFPUE4 PTFPUE3 PTFPUE2 PTFPUE1 PTFPUE0
Write:
Reset: 00000000
$003F
Configuration Register 2
(CONFIG2)
†
Read:
R
EEDIVCLK
RRRRRR
Write:
Reset: 0
† One-time writable register after each reset.
$0040
Timer B Status and
Control Register
(TBSC)
Read: TOF
TOIE TSTOP
00
PS2 PS1 PS0
Write: 0 TRST
Reset: 00100000
$0041
Timer B Counter
Register High
(TBCNTH)
Read: Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset: 00000000
$0042
Timer B Counter
Register Low
(TBCNTL)
Read: Bit 7 654321Bit 0
Write:
Reset: 00000000
$0043
Timer B Counter Modulo
Register High
(TBMODH)
Read:
Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset: 11111111
$0044
Timer B Counter Modulo
Register Low
(TBMODL)
Read:
Bit 7 654321Bit 0
Write:
Reset: 11111111
$0045
Timer B Channel 0 Status
and Control Register
(TBSC0)
Read: CH0F
CH0IE MS0B MS0A ELS0B ELS0A TOV0 CH0MAX
Write: 0
Reset: 00000000
Addr. Register Name Bit 7 654321Bit 0
= Unimplemented R = Reserved
Figure 2-2. Control, Status, and Data Registers (Sheet 7 of 11)

Motorola MC68HC908AB32 Specifications

General

Brand	Motorola
Model	MC68HC908AB32
Category	Controller
Language	English