11
D
VF-3400
W
A
VEFORMS
1. SYSTEM 27MHz CLOCK, RESET, FLASH R/W SIGNAL
1) ZR966 main clock is at 27MHz (X601)
2) ZR699 reset is active high
3) RS232 waveform during procedure (Downloading)
4) Flash R/W enable signal during download (Downloading)
FIG 1-1
FIG 1-2
FIG 1-3
FIG 1-4
Note: Waveform number shows check points in schematic diagram
1
2
3
4
3.3VA
PWR_CTL
RESET
5
6
TXD
RXD
7
8
PRD
PWR
