M306H7T3-RPD-E User’s Manual
2. Setup
REJ10J0964-0100 Rev.1.00 August 01, 2005
Page 45 of 88
2.9.5 Installing and Removing Network Resistors for Pullup
In this product, you cannot control pullup for ports P0 to P5 by pullup control registers (pullup control register read/write are
possible).
A socket for installing the network resistor for pullup is mounted in this product. Mount the 51 k
Ω
network resistor supplied
with this product to the port for which pullup control is required. For the mounting location, refer to Figure 2.21 below. And
for the positions of each part, refer to Figure 2.15.
Figure 2.21 Position for mounting network resistors for pullup
CAUTION
Note on Installing and Removing Network Resistors for Pullup:
Always shut OFF power before installing or removing network resistors for pullup. Also install
network resistors for pullup properly. Otherwise, internal circuit board may be damaged.
VCC
P5
P
4
P
3
P2
P1
P0
RM1
--
RM6
VCC
VCC
VCC
VCC
VCC
VCC
P07
P06
P05
P04
P03
P02
P01
P00
P17
P15
P16
P14
P10
P13
P12
P11
P37
P27
P35
P36
P34
P25
P26
P24
P30
P20
P33
P32
P31
P23
P22
P21
P57
P55
P56
P54
P47
P45
P46
P44
P50
P53
P52
P51
P40
P43
P42
P41