参数资料
型号: PP-MOD1V2
英文描述: ISP INTERFACE MODULE
中文描述: ISP的接口模块
文件页数: 13/48页
文件大小: 3471K
代理商: PP-MOD1V2
ISP Interface Module Version 1.00 27/06/01
6
3.2 Jumper Link – Detailed Descriptions
3.2.1 VPP Supply option link (LK1)
This link controls the source voltage for the on-board Vpp Generator IC. This IC requires +5V
to operate.
LK 1 – Pin Descriptions
Key ID
Pin Description/Functions
LK1 pin 1
+5V continuous supply from PRO101/4/8 programmer
LK1 pin 2
VCC actual supply to VPP Generator IC (U2)
LK1 pin 3
VCC voltage supplied by the user Target System
Figure 9
LK 1 – Function Selection
Position
LK1 1-2
Selected Function
The Vpp (+12V) Generator IC is supplied from the +5V output from the PPM
programmer.
The Vpp Generator IC is supplied from the Target system Vcc.
If the Target Vcc is <+5V and you wish to use the on-board Vpp Generator, it is
necessary to supply the IC from the PPM +5V line by connecting LK1 1-2.
The Vpp (+12V) Generator IC is not powered at all.
This setting is the default setting. Power is only required to this IC if you are using the
Vpp(+12V).
LK1 2-3
Not Fitted
Figure 10
3.2.2 RESET select options link (LK2)
This link selects whether the RESET signal connected to the Target System is +12V or the
normal (3.0 - 5.0V) RESET voltage. The +12V option is only required when programming
ATtiny11/12/15/22 devices in ‘High Voltage Serial Programming Mode’. These algorithms are
not currently implemented on the PRO101/4/8 programmers and so this jumper should
always be fitted in the LK2 1-2 position.
LK 2 – Pin Descriptions
Key ID
Pin Description/Functions
LK2 pin 1
Programmer RESET signal (P-RESET) from PRO101/4/8 programmer.
LK2 pin 2
Target RESET signal (T-RESET) which connects to the RESET pin of the Target
System
LK2 pin 3
+12V Vpp Output (VPP-RESET) from on-board VPP Generator IC
Figure 11
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