MC908MR16CFUE Datasheet, PDF (102/282 Pages) Freescale Semiconductor, Inc – On-chip programming firmware for use with host personal computer, Clock generator module (CGM)

Input/Output (I/O) Ports (PORTS)
Addr.
$0005
$0006
$0007
Register Name
Data Direction Register B
(DDRB)
See page 105.
Data Direction Register C
(DDRC)
See page 106.
Bit 7
Read:
DDRB7
Write:
Reset: 0
Read: 0
Write: R
Reset: 0
6
DDRB6
0
DDRC6
0
5
DDRB5
0
DDRC5
0
4
3
DDRB4 DDRB3
0
0
DDRC4 DDRC3
0
0
Unimplemented
2
1
DDRB2 DDRB1
0
0
DDRC2 DDRC1
0
0
Bit 0
DDRB0
0
DDRC0
0
$0008
$0009
Port E Data Register
(PTE)
See page 108.
Port F Data Register
(PTF)
See page 110.
Read:
Write:
Reset:
Read:
Write:
Reset:
PTE7
0
R
PTE6
0
R
PTE5
PTF5
PTE4 PTE3
Unaffected by reset
PTF4 PTF3
Unaffected by reset
PTE2
PTF2
PTE1
PTF1
PTE0
PTF0
$000A
Unimplemented
$000B
Unimplemented
$000C
$000D
Data Direction Register E
(DDRE)
See page 109.
Read:
Write:
Reset:
DDRE7
0
DDRE6
0
DDRE5
0
DDRE4
0
DDRE3
0
DDRE2
0
Data Direction Register F ^{Read: 0}
(DDRF) Write: R
See page 110. _Reset:
0
DDRF5 DDRF4 DDRF3 DDRF2
R
0
0
0
0
R = Reserved
= Unimplemented
Figure 10-1. I/O Port Register Summary (Continued)
DDRE1
0
DDRF1
0
DDRE0
0
DDRF0
0
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
102
Freescale Semiconductor