參數資料
型號： MC68HC05C0P
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, 4 MHz, MICROCONTROLLER, PDIP40
封裝： DIP-40
文件頁數： 6/96頁
文件大?。?/td> 357K
代理商： MC68HC05C0P
Section 1: Introduction
MOTOROLA
Page 5
MC68HC05C0 Specification Rev. 1.2
1.4.13
PC3-PC0
These four I/O lines constitute Port C. The state of any pin is software programmable and
all Port C lines are configured as inputs during Reset. See Section 7.4 INPUT/OUTPUT
PROGRAMMING for a detailed description of I/O programming. Port C is not available on
the 40 Pin PDIP package, and only PC0 and PC2 are available on the 42 Pin SDIP
package.
1.4.14
LIR/MODE
During Power-On Reset, the MCU latches the state of the MODE pin to select between
Muxed or Non-Muxed modes of operation. See Section 9 ADDRESS/DATA BUS
INTERFACE for a detailed description of the MODE pin.
During normal operation, the
Configuration Register can be programmed to make this pin the Load Instruction Register
signal. This active low output is used to indicate that a fetch of the next opcode is in
progress.
1.5
DEVICE PINOUT
for the pinout of the three available packages.
Figure 1-2: 40-Pin DIP Pinout of the MC68HC05C0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
27
28
29
30
31
32
33
34
35
36
37
38
39
40
LIR/MODE
SCK/PB4
TDO/PB3
RDI/PB2
TCAP/PB1
A2/PD2
TCMP/PB0
WR
A12
A7/PD7
A6/PD6
A5/PD5
A4/PD4
A3/PD3
OSC2
OSC1
RESET
IRQ
AS/CS2
VDD
VSS
A14
A13
A8
A9
A11
RD
CS1/PB5
15
16
17
18
19
20
A15
AD7
AD6
AD5
AD4
A10
21
22
23
24
25
26
A1/PD1
A0/PD0
AD0
AD1
AD2
AD3
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