Pins Used For Fujitsu Standard Serial Onboard Writing - Fujitsu FR60 Hardware Manual

18.2

Pins Used for Fujitsu Standard Serial Onboard Writing

This section describes pins used for Fujitsu standard serial onboard writing.
■ Pins Used for Fujitsu Standard Serial Onboard Writing
Table 18.2-1 shows the functions of pins used for Fujitsu standard serial onboard writing.
Table 18.2-1 Function of Pins Used for Fujitsu Standard Serial Onboard Writing
Pin
MD2, MD1,
Mode pin
MD0
Programming program start
PN0, PN2
pin
INIT Reset pin
SI3 Serial data input pin
SO3 Serial data output pin
SCK3 Serial clock input pin
V
Power voltage supply pin
CC
V
GND pin
SS
To use the PN0, PN2, SI3, SO3, and SCK3 pins within the user system as well, the control circuit shown in
the Figure 18.2-1 is required.
(Using the flash microcontroller programmer's /TICS signal, the user circuit can be disconnected in serial
programming mode.)
Connect with AF220/AF210/AF120/AF110 under the power-off state of the user system.
Function
Set to enter the flash serial programming mode.
Reference:
Input a" L" level to PN0 and a "H" level to PN2.
Use ch3 resource of UART for CLK sync mode.
The programming voltage is supplied from the user system.
Note: Do not connect with the power supply of the user system.
Must be shared with GND of the flash microcontroller programmer.
Figure 18.2-1 Control Circuit when Using by User System
AF220/AF210/
AF120/AF110
Write control pin
10 kΩ
AF220/AF210/
AF120/AF110
/TICS pin
Flash serial programming mode: MD2 = 1, MD1 = 0, MD0 = 0
Single chip mode: MD2 = 0, MD1 = 0, MD0 = 0
MB91F355A/F353A/F356B/F357B
Write control pin
User
Description
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