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CHAPTER 29 EXAMPLES OF SERIAL PROGRAMMING CONNECTION
29.2
Example of Serial Programming Connection
The value 1 and 0 are input to mode pins MD2 and MD0 from TAUX3 and TMODE of the
AF220/AF210/AF120/AF110 programmer.
Serial reprogramming mode: MD2, MD1, MD0 = 110
■ Example of Serial Programming Connection (User Power Supply Used)
Figure 29.2-1 shows the example of serial programming connection for MB90F394H(A) internal vector
modes (user power supply used).
Figure 29.2-1 Example of Serial Programming Connection for MB90F394H(A) Internal Vector Modes
596
(User Power Supply Used)
User system
AF220/AF210/AF120/AF110
flash microcontroller
Connector
programmer
DX10-28S or DX20-28S
(19)
T AUX3
TMODE
(12)
T AUX
(23)
/TICS
(10)
/TRES
(5)
(13)
TTXD
(27)
TRXD
(6)
TCK
TVcc
(2)
(7, 8,
GND
14,15,
21, 22
1, 28)
Pins 3, 4, 9, 11, 16, 17, 18, 20,
24, 25, and 26 are open.
DX10-28S: Right-angle type
DX20-28S: Straight type
.
B
MB90F394H
MD2
10k
10k
MD1
10k
MD0
X0
X1
P00
10k
User circuit
10k
RST
10k
P01
User circuit
C
0.1 or more μ F
SIN4
SOT4
SCK4
Vcc
User power
supply
Vss
Pin 14
DX10-28S
DX20-28S
Pin 28
Connector (Hirose Electronics Ltd.)
pin arrangement
Pin 1
Pin 15
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