参数资料
型号: MC68HC11ED0VP2
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 2 MHz, MICROCONTROLLER, PDIP40
封装: PLASTIC, DIP-40
文件页数: 50/108页
文件大小: 1672K
代理商: MC68HC11ED0VP2
Technical Summary
MC68HC11ED0 — Rev. 1.0
Operating Modes and On-Chip Memory
Operating Modes and On-Chip Memory
Figure 4-1. Address and Data Demultiplexing
4.4 Mode Selection
Operating modes are selected by a combination of logic levels applied
to two input pins (MODA and MODB) during reset. The logic level
present (at the rising edge of reset) on these inputs is reflected in bits in
the highest priority I-bit interrupt and miscellaneous (HPRIO) register.
After reset, the operating mode may be changed as shown in Figure 4-2.
MC54/74HC373
MCU
ADDR14
ADDR13
ADDR12
ADDR11
ADDR10
ADDR9
ADDR8
ADDR15
ADDR6
ADDR5
ADDR4
ADDR3
ADDR2
ADDR1
ADDR0
ADDR7
DATA6
DATA5
DATA4
DATA3
DATA2
DATA1
DATA0
DATA7
DATA2
DATA3
DATA4
DATA5
DATA6
DATA7
DATA8
DATA1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q1
Q0
LE
ADDR6/DATA6
ADDR5/DATA5
ADDR4/DATA4
ADDR3/DATA3
ADDR2/DATA2
ADDR1/DATA1
ADDR0/DATA0
ADDR7/DATA7
AS
ADDR14
ADDR13
ADDR12
ADDR11
ADDR10
ADDR9
ADDR8
ADDR15
R/W
E
WE
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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