参数资料
型号: MC68HC05K1VDWR3
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDSO16
封装: SOIC-16
文件页数: 127/154页
文件大小: 1544K
代理商: MC68HC05K1VDWR3
Technical Data
MC68HC05K0 MC68HC05K1 — Rev. 2.0
74
Parallel Input/Output (I/O)
MOTOROLA
Technical Data
7.4.4 Port B Logic
Figure 7-8 shows the port B I/O logic.
Figure 7-8. Port B I/O Circuit
PB1/
DATA DIRECTION
REGISTER B
BIT (DDRB1)
PORT B DATA
REGISTER
BIT (PB1)
PULLDOWN
REGISTER B
BIT (PDIB1)
READ $0005
WRITE $0005
WRITE $0001
READ $0001
WRITE $0011
100-mA
PULLDOWN
DEVICE
RESET
INTERNAL
D
AT
A
B
U
S
OSC3
PB0
DATA DIRECTION
REGISTER B
BIT (DDRB0)
PORT B DATA
REGISTER
BIT (PB0)
PULLDOWN
REGISTER B
BIT (PDIB0)
READ $0005
WRITE $0005
WRITE $0001
READ $0001
WRITE $0011
100-mA
PULLDOWN
DEVICE
TO 3-PIN
OSCILLATOR
PULLDOWNS ENABLED
(MASK OPTION)
3-PIN RC OSCILLATOR
(MASK OPTION)
RC OSCILLATOR
(MASK OPTION)
(ACTIVE LOW)
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