Table of Contents
Advertisement
CHAPTER 29 EXAMPLES OF SERIAL PROGRAMMING CONNECTION
29.4
Example of Minimum Connection to the Flash
Microcontroller Programmer (User Power Supply Used)
Figure 29.4-1 shows the example of minimum connection to the flash microcontroller
programmer (user power supply used).
Serial reprogramming mode: MD2, MD1, MD0 = 110
■ Example of Minimum Connection to the Flash Microcontroller Programmer
(User Power Supply Used)
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 29.4-1 Example of Minimum Connection to the Flash Microcontroller Programmer
600
(User Power Supply Used)
AF220/AF210/AF120/AF110
User system
flash microcontroller
programmer
1 for serial
reprogramming
10k
0 for serial
reprogramming
/TRES
TTXD
TRXD
TCK
TVcc
GND
Pins 3, 4, 9, 10, 11, 12, 16, 17, 18, 19,
20, 23, 24, 25, and 26 are open.
DX10-28S: Right-angle type
DX20-28S: Straight type
.
B
1 for serial
10k
reprogramming
10k
10k
10k
10k
0 for serial
10k
reprogramming
10k
User circuit
1 for serial reprogramming
User
circuit
Connector
DX10-28S or
DX20-28S
10k
(5)
(13)
(27)
(6)
(2)
(7, 8,
User power supply
14,15,
21, 22,
1, 28)
DX10-28S
DX20-28S
Connector (Hirose Electronics Ltd.)
pin arrangement
MB90F394H
MD2
MD1
MD0
X0
X1
P00
P01
C
RST
SIN4
SOT4
SCK4
Vcc
Vss
Pin 14
Pin 1
Pin 28
Pin 15
Advertisement
Table of Contents
