
511
21.1 Standard Configuration for Serial On-board Programming (Fujitsu Standard)
Note:
When the P00, P01,SIN1,SOT1,and SCK0 pins are also used by the user system, the
control circuit shown in
Figure 21.1-1 "Control Circuit" is required. (The /TICS signal of the
flash microcomputer programmer can separate the user circuit during serial writing. See the
connection example shown later.)
Figure 21.1-1 Control Circuit
Refer to the following four serial writing examples in Sections 20.2 to 20.5.
Example of serial programming connection
When power supplied by user
Example of serial programming connection
When power supplied from flash microcomputer programmer
Example of minimum connection to flash microcomputer programmer
When power supplied from user
Example of minimum connection to flash microcomputer programmer
When power supplied from flash microcomputer programmer
RSTX
Reset pin
-
SIN1
Serial data input pin
UART0 and UART1 are used in clock synchronous
mode.
The pins used in clock synchronous mode of UART0
are SIN1, SOT1, and SCK0 in programming mode.
SOT1
Serial data output
pin
SCK0
Serial clock input pin
C
C terminal
Capacity terminal for stabilizing the power supply.
Connect an external ceramic capacitor of about 0.1
.
VCC
Power supply pin
To supply the programming voltage (MB90F562/
F562B: 5V - 10% to 5V + 10%, MB90F568: 3V - 10%
to 3V + 10%) from the user system, the flash
microcomputer programmer need not be connected.
Make sure that no short-circuit occurs with the user-
side power supply when making connections.
VSS
Ground pin
Used also as the ground pin for the flash
microcomputer programmer.
Table 21.1-1 Pins Used for Fujitsu Standard Serial on-board Programming (Continued)
Pin
Function
Description
User
10 K
MB90F562/F562B/F568
write control pin
AF220/AF210/AF120/AF110
write control pin
AF220/AF210/AF120/AF110
/TICS
pin