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CHAPTER 25 EXAMPLES OF MB90F362/T(S), MB90F367/T(S) SERIAL PROGRAMMING CONNECTION
25.5 Example of Minimum Connection to Flash Microcontroller
Programmer (Power Supplied from Programmer)
Figure 25.5-1 shows an example of the minimum connection to the MB90F362/T(S),
MB90F367/T(S) flash microcontroller programmer when power is supplied from the
Programmer.
Serial reprogramming mode: MD2, MD1, MD0 = 110
B
.
■ Example of Minimum Connection to Flash Microcomputer Programmer (Power
supplied from programmer)
For a flash memory write, the MD2, MD1, MD0, P83, and P84 pins and flash microcontroller programmer
need not be connected if the pins are set as Figure 25.5-1 .
Figure 25.5-1 Example of Minimum Connection to the MB90F362/T(S), MB90F367/T(S) Flash
Microcontroller Programmer (power supplied from programmer)
10kΩ
MD1
MD2
AF220/AF210/AF120/AF110
MD0
10kΩ
10kΩ
10kΩ
10kΩ
10kΩ
1 for serial rewrite
0 for serial rewrite
User circuit
P83
10kΩ
P84
User circuit
1 for serial rewrite
X0
X1
4MHz
to 16MHz
Vss
GND
Connector
(7,8,
14,15,
21,22,
1,28)
- 4,9,10,11,12,17,18,19,20,23,24,25 and 26
pins are open.
Connector (Hirose Electronics Ltd.) pin arrangement
- DX10-28S : Right-angle type
- DX20-28S : Straight type
SIN1
TTXD (13)
SOT1
TRXD
(27)
SCK1TCK
(6)
Vcc
(2)
TVcc
10kΩ
/TRES RST
(5)
C
0.1
µ
F
10k
Ω
1 pin
28 pin 15 pin
14 pin
DX10-28S
DX20-28S
1 for serial rewrite
0 for serial rewrite
(3)
(16)
Vcc
TVPP1
DX10-28S
DX20-28S
MB90F362/T(S),
MB90F367/T(S)
flash microcontroller
programmer
User system