24.5 Example of Minimal Connection with the Flash Microcontroller Programmer (When Power Is Supplied from
24.5 Example of Minimal Connection with the Flash
Microcontroller Programmer
(When Power Is Supplied from a Writer)
Figure 24.5-1 shows an example of minimal connection with the flash microcontroller
programmer when the power supply voltage of the microcontroller is supplied from a
writer.
■ Example of Minimal Connection with the Flash Microcontroller Programmer
(when Power is Supplied from a Writer)
The MD2, MD1, MD0, and P00 pins need not be connected to the flash microcontroller
programmer if each pin is connected, as shown below, for flash memory programming.
Figure 24.5-1 Example of Minimal Connection with Flash Microcontroller Programmer
AF220/AF210/
AF120/AF110
flash microcontroller
programmer
(when Power is Supplied from a Writer)
User system
Serial
reprogramming 1
Serial
reprogramming 1
Serial
reprogramming 0
10kΩ
Serial
reprogramming 0
User circuit
Serial
reprogramming 1
10kΩ
Connector
DX10-28S
(5)
/TRES
(13)
TTXD
(27)
TRXD
(6)
TCK
(2)
TVcc
(3)
Vcc
(16)
TVPP1
(7,8,
GND
14,15,
21,22,
1,28)
Pins 4, 9 to 12, 17 to 20,
and 23 to 26 are open.
DX10-28S: Right-angle type
MB90F553A
10kΩ
MD2
10kΩ
10kΩ
MD1
10kΩ
10kΩ
MD0
10kΩ
X0
1MHz to 16MHz
X1
P00
10kΩ
P01
User
circuit
HST
C
0.1µF
10kΩ
RST
SIN
SOT
SCK
Vcc
Vss
Pin 14
DX10-28S
Pin 28
Connector (manufactured by Hirose
Electric Co., Ltd.) pin alignment
Pin 1
Pin 15
381