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CHAPTER 29 EXAMPLES OF SERIAL PROGRAMMING CONNECTION
29.5
Example of Minimum Connection to the Flash
Microcontroller Programmer (Power Supplied From the
Programmer)
Figure 29.5-1 shows the example of minimum connection to the flash microcontroller
programmer (power supplied from the programmer).
Serial reprogramming mode: MD2, MD1, MD0 = 110
■ Example of Minimum Connection to the Flash Microcontroller Programmer (Power
Supplied From the Programmer)
For a flash memory write, the MD2, MD1, MD0, and P00 pins and flash microcontroller programmer need
not be connected if the pins are set as described below.
Figure 29.5-1 Example of Minimum Connection to the Flash Microcontroller Programmer
602
(Power Supplied From the Programmer)
AF220/AF210/AF120/AF110
User system
flash microcontroller
programmer
1 for serial
reprogramming
0 for serial
reprogramming
Connector
DX10-28S or
DX20-28S
(5)
/TRES
(13)
TTXD
(27)
TRXD
(6)
(2)
TCK
(3)
(16)
TVcc
(7,8,
GND
14,15,
21, 22,
1, 28)
Pins 4, 9, 10, 11, 12, 17, 18, 19,
20, 23, 24, 25, and 26 are open.
DX10-28S: Right-angle type
DX20-28S: Straight type
.
B
MB90F394H
1 for serial
reprogramming
MD2
MD1
MD0
0 for serial
reprogramming
X0
X1
P00
User circuit
P01
1 for serial reprogramming
User
circuit
C
RST
SIN4
SOT4
SCK4
Vcc
Vss
Pin 14
DX10-28S
DX20-28S
Pin 28
Connector (Hirose Electronics Ltd.)
pin arrangement
Pin 1
Pin 15
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