MC68HC711xxxx Motorola, MC68HC711xxxx Datasheet - Page 111

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MC68HC711xxxx

Manufacturer Part Number
MC68HC711xxxx
Description
Microcontrollers
Manufacturer
Motorola
Datasheet
6.3 Port B
6.4 Port C
M68HC11E Family — Rev. 5
MOTOROLA
In single-chip or bootstrap modes, port B pins are general-purpose outputs. In
expanded or special test modes, port B pins are high-order address outputs.
In single-chip and bootstrap modes, port C pins reset to high-impedance inputs.
(DDRC bits are set to 0.) In expanded and special test modes, port C pins are
multiplexed address/data bus and the port C register address is treated as an
external memory location.
Single-chip or bootstrap modes:
Expanded or special test modes:
Single-chip or bootstrap modes:
Expanded or special test modes:
Address:
Address:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
ADDR15
ADDR7
DATA7
$1004
$1003
Bit 7
PB7
Bit 7
PC7
0
0
Parallel Input/Output (I/O) Ports
Figure 6-3. Port B Data Register (PORTB)
Figure 6-4. Port C Data Register (PORTC)
ADDR14
ADDR6
DATA6
PC6
PB6
6
0
0
6
ADDR13
ADDR5
DATA5
PB5
PC5
5
0
0
5
Indeterminate after reset
Indeterminate after reset
ADDR12
ADDR4
DATA4
PB4
PC4
4
0
0
4
ADDR11
ADDR3
DATA3
PC3
PB3
3
0
0
3
Parallel Input/Output (I/O) Ports
ADDR10
ADDR2
DATA2
PB2
PC2
2
0
0
2
ADDR1
ADDR9
DATA1
PB1
PC1
1
0
0
1
Data Sheet
ADDR8
ADDR0
DATA0
Bit 0
Bit 0
PC0
PB0
Port B
0
0
111

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