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參數(shù)資料
| 型號(hào)： | PIC12F506 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 8/14-Pin, 8-Bit Flash Microcontroller |
| 中文描述： | 8/14-Pin，8位閃存微控制器 |
| 文件頁(yè)數(shù)： | 72/116頁(yè) |
| 文件大?。?/td> | 907K |
| 代理商： | PIC12F506 |
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PIC12F510/16F506
DS41268C-page 70
Preliminary
2007 Microchip Technology Inc.
10.12 In-Circuit Serial Programming
(ICSP)
The PIC12F510/16F506 microcontrollers can be
serially programmed while in the end application circuit.
This is simply done with two lines for clock and data,
and three other lines for power, ground and the
programming voltage. This allows customers to manu-
facture boards with unprogrammed devices and then
program the microcontroller just before shipping the
product. This also allows the most recent firmware, or
a custom firmware, to be programmed.
The devices are placed into a Program/Verify mode by
holding the GP1/RB1 and GP0/RB0 pins low while rais-
ing the MCLR (V
PP
) pin from V
IL
to V
IHH
(see program-
ming
specification).
GP1/RB1
programming clock and GP0/RB0 becomes the
programming data. Both GP1/RB1 and GP0/RB0 are
Schmitt Trigger inputs in this mode.
After Reset, a 6-bit command is supplied to the device.
Depending on the command and if the command was a
Load or a Read, 14 bits of program data are then sup-
plied to or from the device. For complete details of serial
programming, please refer to the PIC12F510/16F506
Programming Specifications.
A typical In-Circuit Serial Programming connection is
shown in Figure 10-16.
becomes
the
FIGURE 10-16:
TYPICAL IN-CIRCUIT
SERIAL PROGRAMMING
CONNECTION
External
Connector
Signals
To Normal
Connections
To Normal
Connections
PIC12F510
PIC16F506
V
DD
V
SS
MCLR/V
PP
GP1/RB1
GP0/RB0
+5V
0V
V
PP
CLK
Data I/O
V
DD
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