MC68HC912D60A MOTOROLA [Motorola, Inc], MC68HC912D60A Datasheet - Page 88
MC68HC912D60A
Manufacturer Part Number
MC68HC912D60A
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC912D60A.pdf
(460 pages)
- Current page: 88 of 460
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Bus Control and Input/Output
PORTB — Port B Register
DDRB — Port B Data Direction Register
Technical Data
88
Single Chip
Expanded
Expanded
& Periph:
RESET:
RESET:
narrow
ADDR7/
DDB7
ADDR7
DATA7
Bit 7
Bit 7
PB7
0
—
ADDR6/
DDB6
ADDR6
DATA6
PB6
6
0
—
6
Bits PB[7:0] are associated with addresses ADDR[7:0] and DATA[7:0]
(except in narrow mode) respectively. When this port is not used for
external addresses such as in single-chip mode, these pins can be used
as general-purpose I/O. DDRB determines the primary direction of each
pin. This register is not in the on-chip map in expanded and peripheral
modes. Read and write anytime.
This register determines the primary direction for each port B pin when
functioning as a general-purpose I/O port. DDRB is not in the on-chip
map in expanded and peripheral modes. Read and write anytime.
Freescale Semiconductor, Inc.
For More Information On This Product,
0 = Associated pin is a high-impedance input
1 = Associated pin is an output
ADDR5/
ADDR5
DDB5
DATA5
PB5
5
0
—
5
Bus Control and Input/Output
Go to: www.freescale.com
ADDR4/
ADDR4
DATA4
DDB4
PB4
4
0
—
4
ADDR3/
ADDR3
DATA3
DDB3
PB3
3
0
—
3
ADDR2/
ADDR2
DATA2
DDB2
PB2
—
2
0
2
ADDR1/
ADDR1
DATA1
DDB1
PB1
MC68HC912D60A — Rev 3.0
—
1
0
1
ADDR0/
ADDR0
DATA0
DDB0
Bit 0
Bit 0
PB0
—
0
MOTOROLA
$0001
$0003
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