Synchronous Programming - Fujitsu ALL FR 460 Series Application Note

SCK4 pin is connected to stable level because a falling edge could be detected as
synchronous interface in use. Hence, an unused SCK4 pin should be connected to external
pull up or pull down resistor (2k ...10k).

4.4 Synchronous Programming

The following schematic shows a possible configuration:
MB90F46x
Figure 2: Serial synchronous programming interface
For pin connection and pull up/down resistors please refer to asynchronous programming.
Please note the SCK4 has to be threatened electrically equal to SIN4.
© Fujitsu Microelectronics Europe GmbH
FR460 Hardware Set Up
Chapter 4 Minimum Flash Programming Connection
SCK4
SOT4
SIN4
INITX 2k
1n
- 21 -
Programmer
+
5V/3V
330R
330R
330R
RESET
MCU-AN-300033-E-V13