MCMC68HC05L16 Freescale Semiconductor, Inc, MCMC68HC05L16 Datasheet - Page 25

• Manufacturer Part Number: MCMC68HC05L16
• Description: M68hc05 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

2.2.6 Option Map
Address locations $0000–$000F are dual mapped. When the OPTM bit in the MISC register is cleared,
the main address map is accessed. When the OPTM bit in the MISC register is set, the option address
map is accessed.
2.3 Summary of Internal Registers and I/O Map
Figure 2-3
Freescale Semiconductor
$000A
$0000
$0001
$0002
$0003
$0004
$0005
$0007
$0008
$0009
Addr.
↓
Serial Peripheral Control Register
contains a detailed memory map of the I/O registers.
Interrupt Control Register
Interrupt Status Register
Although not necessary for this device, for future compatibility the OPTM bit
should be cleared when accessing memory locations $0010 and above.
Port C Data Register
Port D Data Register
Port A Data Register
Port B Data Register
Port E Data Register
Register Name
See page 52.
See page 53.
See page 54.
See page 56.
See page 57.
See page 45.
See page 46.
See page 73.
Reserved
Reserved
(PORTC)
(PORTD)
(PORTA)
(PORTB)
(PORTE)
(INTCR)
(INTSR)
(SPCR)
MC68HC05L16 • MC68HC705L16 Data Sheet, Rev. 4.1
Figure 2-3. Main I/O Map (Sheet 1 of 5)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
IRQ1E
IRQ1F
Bit 7
SPIE
PA7
PB7
PC7
PD7
PE7
R
R
1
1
0
0
0
= Unimplemented
IRQ2E
IRQ2F
PA6
PB6
PC6
PD6
PE6
SPE
NOTE
R
R
6
1
1
0
0
0
DORD
PC5
PD5
PA5
PB5
PE5
R
R
5
1
1
0
0
0
0
0
Unaffected by reset
Unaffected by reset
Unaffected by reset
MSTR
KWIE
KWIF
PC4
PD4
PA4
PB4
PE4
Summary of Internal Registers and I/O Map
R
R
R
4
1
1
0
0
0
= Reserved
IRQ1S
RIRQ1
PA3
PB3
PC3
PD3
PE3
R
R
3
1
1
0
0
0
0
0
IRQ2S
RIRQ2
PA2
PB2
PC2
PD2
PE2
R
R
2
1
1
0
0
0
0
0
U = Unaffected
PA1
PB1
PC1
PD1
PE1
R
R
1
1
1
0
0
0
0
0
0
RKWIF
Bit 0
PC0
SPR
PA0
PB0
PE0
R
R
1
1
1
0
0
0
0
0
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