Renesas HS0008EASF5HE, User Manual

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Section 5 Specification
Rev. 1.00 Oct. 02, 2009 Page 21 of 22
REJ10J2064-0100
5.2.2 Specification of the Control Sequence 2
1. When the user system power supply is turned on or the power switch is on, the low level is
output by the RES pin.
2. After power has been turned on, pressing the transfer switch for the first time places the RES
pin at the high level, and the user system makes the transition to programming processing etc.
3. After that, every time the transfer switch is pressed, the level of RES signal is inverted.
4. The control sequence 2 has the two following states: execution of programming etc. is in
progress (the START LED is on) and the reset state (the START LED is off).
5. When the transition to programming processing etc. is made, the application of 2.7 to 5.25 V
to the FWE/FWP pin starts or stops (figure 5.2) 10 ms after the transfer switch is pressed.
VIN(VCC)
/RES
FWE etc.
550 ms
The START/STOP
switch is pressed.
The START/STOP
switch is pressed.
2.7 to 5.25 V
0V to Vcc(2.7 to 5.25 V)
0V to Vcc(2.7 to 5.25 V)
10 ms
540 ms
10 ms
The START LED is on.
Write processing
The user-system power supply or
POWER switch is turned on.
POWER LED is turned on.
The START LED is on.
550 ms
The START/STOP
switch is pressed.
10ms
540 ms
The START
LED is on.
The user system
is reset state.
The START/STOP
switch is pressed.
10 ms
Write processing
The START
LED is on.
: Pin settings on the user
system board, such as
for FWE are valid.
Figure 5.2 Reset Signal, 2.7- to 5.25-V Application, and Stop Timing (Control sequence 2)