Example Of Minimum Connection To The Flash Microcontroller Programmer (Power Supplied From The Writer); (Power Supplied From The Writer) - Fujitsu MB90420/5 (A) Series Hardware Manual

26.5 Example of Minimum Connection to the Flash Microcontroller Programmer

(Power Supplied from the Writer)

Figure 26.4 is an example of the minimum connection to the flash microcontroller programmer when power
is supplied from the writer.
n Example of minimum connection to the flash microcontroller programmer (power supplied from
the writer)
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.
Fig. 26.4 Example of Minimum Connection to the Flash Microcomputer Programmer
EXAMPLES OF MB90F428/A SERIAL WRITE CONNECTION
AF220/AF210/AF110
User system
flash microcontroller
programmer
1 for serial rewrite
10 kΩ
0 for serial rewrite
Connector
DX10-28S
/TRES
TTXD
TRXD
TCK
TV
CC
V
CC
TVPP1
GND
4, 9, 10, 11, 12, 17, 18, 19, 20, 23, 24,
25, 26 are open
DX10-28S: Right-angle type
(Power Supplied from the Writer)
10 kΩ
1 for serial rewrite
10 kΩ
10 kΩ
10 kΩ
10 kΩ
0 for serial rewrite
10 kΩ
1 MHz to 16 MHz
User circuit
10 kΩ
1 for serial rewrite
User circuit
0.1 µF
10 kΩ
(5)
(13)
(27)
(6)
(2)
(3)
(16)
(7, 8,
14, 15,
21, 22,
1, 28)
Pin 14
DX10-28S
Pin 28
Connector (Hirose Electric Co., Ltd.) pin assignment
26-11
MB90F428/A
MD2
MD1
MD0
X0
X1
P00
P01
C
RST
SIN1
SOT1
SCK1
V
CC
V
SS
Pin 1
Pin 15